Professor Mike recommended that Peter              in chemistry.

A.  not to major                                  B. not major

C. wouldn't major                             D. isn't majoring

Các bước phân tích đoạn thơ, bài thơ lớp 6 nha. Viết chi tiết giúp mk vs!

But for his help, she              

A.  would not have succeeded            B. had not succeeded

 Although the exam was difficult,             the students passed it.

A.  most of            B. none of            C. a few                D. a lot

   Language could                more quickly if there were more language exchange programs.

A.   be learning                                    B. have learned

C. have learning                                D. be learned

 Do you have any objections                this decision?

A.  at                     B. with                 C. to                     D. for

   the plane landed, it was surrounded by police.

 The purpose of this book is              a complete guide to the university.

       my opinion, he is better at English than his brother.

A.  For                   B. To                    C. By                             D. In

 On no account                 in the office be used for personal materials.

A.  the photocopy machines

B.  the photocopy machines should

C.  should the photocopy machines

 Animals sometimes fool their enemies             to be dead.

A.  have been appearing                     B. to be appearing

C. to appear                                      D. by appearing

Ancient Egyptians mummified their dead through the use of chemicals,               ancient Peruvians did through natural processes.

A.  because            B. whereas           C. even though     D. whether or not

The boy pleaded              not to leave him alone in the dark.

A.  on his mother                               B. his mother

C. with his mother                            D. at his mother

   they had won the first prize made us happy.

 Had the advertisement for our product been better, more people would have bought it.

A.  Not many people bought our product because it was so bad.

B.  Our product was of better quality so that more people would buy it.

C.   Fewer people bought our product due to its bad quality.

D.  Since our advertisement for our product was so bad, fewer people bought it.

 She has been typing the report for an hour.

A.  It took her an hour to type the report.

B.  It is an hour since she started typing the report.

C.  She finished the report an hour ago.

In population, Hanoi is not as big as Ho Chi Minh City.

A.  Ho Chi Minh City is bigger than Hanoi.

B.  Hanoi is more densely-populated than Ho Chi Minh City.

C.  Ho Chi Minh City is not as crowded as Hanoi.

D.  Ho Chi Minh City is bigger than Hanoi in population.

Walking on the grass in the park is not permitted.

A.  You can walk on the grass in the park if you want to.

B.  People like walking on the grass in the park.

C.  We must not walk on the grass in the park.

D.  We do not have to walk on the grass in the park.

The woman is wearing sunglasses. She is my mother. A The woman who is my mother wearing sunglasses.

B.  The woman who is my mother, is wearing sunglasses.

C.  The woman is my mother is wearing sunglasses.

D.  The woman who is wearing sunglasses is my mother.

 I'd rather be hungry than eat that food.

A.   I am hungry and I want to eat that food.

B.  I can't stand being hungry so I'll eat that food.

C.  I am hungry enough to eat that food.

 Thosewere very difficult assignments. We spent 2 weeks finishing them.

A.  Those assignments were too difficult that we spent 2 weeks finishing them.

B.  Those assignments were so difficult that we spent 2 weeks finishing them.

C.  So difficult these assignments were that we spent 2 weeks finishing them.

The man opened the window. He wanted to get some fresh air in to the room.

A.  The man opened the window in order for getting some fresh air into the room.

B.  The man opened the window; therefore, he can get some fresh air into the room

C.  The man opened the window, so he wanted to get some fresh air into the room.

He now goes to work on his bicycle instead of by car.

A.  He has now stopped driving to work and goes by bicycle.

B.  He still goes to work by car but more often on his bicycle.

C.  Since he bought the car, he has never used the bicycle to go to work.

 Dung drove so fast; it was very dangerous.

A.  Dung drove so fast, which was very dangerous.

B.  Dung drove so fast and was very dangerous.

C.  Dung drove so fast, then was very dangerous.

D.  Dung drove so fast that was very dangerous.

113.       We did not visit the museum because we had no time.

A.  If we have time, we will visit the museum.

B.  If we had time, we would visit the museum.

C.  If we had had time, we would have visited the museum.

 They cancelled all flights because of fog.

A.  All flights were because of fog were cancelled.

B.  All flights were cancelled because of fog.

C.  All flights were because of fog cancelled.

D.   All flights were cancelled by them of fog.

113.       We had to put off our wedding until September.

A.  It was not until September that our wedding had to be put off.

B.  Not until September did we have to put off our wedding.

C.  Our wedding until September had to be postponed.

 She locked the door so as not to be disturbed.

A.  She locked the door so that not to be disturbed.

B.  She locked the door in order that she wouldn't be disturbed.

C.  She locked the door to be not disturbed.

 Mary isn't used to staying up late at night.

A.  Mary isn't accustomed to staying up late at night.

B.  Mary doesn't like staying up late at night.

C.  Mary used to stay up late at night when she was young.

 The student was very bright. He could solve all the math problems.

A.  He was such bright student that he could solve all the math problems.

B.  The student was very bright that he could solve all the math problems.

C.  He was so bright a student that he could solve all the math problems.

 He is such a slow speaker that his students get bored.

A.   He speaks so slowly that his students get bored.

B.  His students got bored because he spoke so slowly.

C.  If he hadn't spoken so slowly, his students wouldn't got bored

  The moon doesn't have the atmosphere, and neither does the planet Mars.

A.  Neither the moon or the planet Mars has the atmosphere.

B.  Either the moon nor the planet Mars has the atmosphere

C.  Neither the moon nor the planet Mars has the atmosphere.

D.  Either the moon or the planet Mars has the atmosphere.

We bought two bicycles. Neither of them worked well.

A.  We bought two bicycles, of which neither worked well.

B.  We bought two bicycles which neither of worked well.

C.  We bought two bicycles neither of which worked well.

D.  We bought two bicycles, neither of which worked well.

The gardens are open each day for visitors to enjoy the flower displays.

A.  I n order to enjoy the flowers each day, visitors open their own displays.

B.  The gardens are open each day so that visitors can enjoy the flower displays.

C.  There are too many flower displays for visitors to enjoy each day.

D.  As long as visitors enjoy the flower displays, the gardens are still open each

day.

 He works in the same office with two women. They are very beautiful and tactful.

A.  The two women's beauty and tact explain why he wants to work at their office.

B.  He works in the same office with two women who are very beautiful and tactful.

C.  Working in the same office with the two beautiful women makes him very tactful.

D.  The offices where he and the two very beautiful and tactful women work are the same.

  The football match was so exciting. The spectators at the stadium cheered wildly all through it.

A.  Despite the exciting football match, not all the spectators at the stadium cheered wildly all through it.

B.  The football match was so exciting that the spectators at the stadium cheered wildly all through it.

C.  The spectators at the stadium cheered wildly to make the match exciting all through it.

D.   When the spectators at the stadium cheered wildly, the football match became exciting all through it.

My mother never allows me to go out alone at night.

A.  I usually go out with my mother at night.

B.  I was not allowed to go out alone at night.

C.  My mother never lets me go out alone at night.

Giai và biện luận phương trình 

((b-c)(1-a)^2/x+a^2)+((c-a)(1+b^2/x+b^2)+((a-b)(1+c^2/x+c^2)

so sánh a = 9 x 9 x 9 + 20 phần 9 x 9 x 9 + 21 và b = 10 x 10 x 10 + 1 = phần 10 x 10 x 10 + 2