Tại sao người Hán lại bắt nhân dân ta cóng nạp đồ vật quý ?                                                  

Mẹ Lan mua $\frac{3}{7}$ số gạo trong 1 cửa hàng cân nặng 6300kg mẹ làm từ thiện hết $\frac{7}{10}$ số gạo đó .Hỏi mẹ Lan còn bao nhiêu kg gạo?

cho 25 điểm trong đó có 3 điểm thẳng tính số đường thẳng tạo thành từ 25 điểm đã cho

Giới thiệu di sản Vịnh Hạ Long

 Một bể cá có dạng khối hộp chữ nhật, có kích thước 40cm×60cm và chiều cao 30cm. Biết lượng nước trong bể cao bằng ¾ chiều cao của bể. Tính số lít nước đang có ở trong bể.

The trainers encourage the animals ______, but the elephants make their own songs; they don’t just copy their trainers or other people.

     A. to play                           B. play                        C. playing                 D. that play

______ humans, dolphins use a system of sounds and body language to communicate, but understanding their conversations is not easy for humans.

     A. Alike                              B. Unlike                    C. Dislike                 D. Like

When I was small, my parents were often away; my grandmother ______ take care of me.

     A. will                                B. shall                       C. would                  D. should

The villagers are not sure how they are going to get ______ another hard and cold winter.

     A. by                                  B. on                           C. round                   D. through

Businesses will not survive ______ they satisfy their customers.

     A. or else                           B. in case                    C. unless                  D. if

Project-based learning provides wonderful opportunities for students to develop their ______.

     A. creative                         B. creativity               C. create                   D. creatively

There has been little rain in this area for too long, ______?

     A. has it                                                                 B. has there              

     C. hasn’t it                                                             D. hasn’t there

There has been little rain in this area for too long, ______?

     A. has it                                                                 B. has there              

     C. hasn’t it                                                             D. hasn’t there

John lost the______bicycle he bought last week and his parents were very angry with him because new beautiful blue Japanese  B. beautiful blue Japanese new  

     C. beautiful new blue Japanese                          D. Japanese beautiful new blue

Determining the mineral content of soil samples is an exacting process; ______,experts must perform detail tests to analyze soil specimens.

     A. therefore                       B. afterward              C. so that                 D. however

The jury_____her compliments______her excellent knowledge of the subject.

     A. returned/ to                 B. paid/ to                  C. returned/ on       D. paid / on

______advised on what and how to prepare for the interview, he might have got the job.

     A. Had he been 
 
B. If he had 
     C. Unless he had been 
 
D. Were he to be

Not only______to determine the depth of the ocean floor, but it is also used to locate oil.

     A. seismology is used 
 
B. using seismology 
     C. is seismology used 
 
D. to use seismology

I tried to talk to her, but she was as high as a______.

     A. kite                                B. house                     C. sky                        D. wall

There’s a list of repairs as long as_______.

     A. your arm                       B. a pole                     C. your arms            D. a mile

I’m sorry I haven’t got any money. I’ve______my wallet at home.

     A. missed                           B. let                           C. left                       D. forgotten

He has been waiting for this letter for days, and at_______it has come.

     A. the end                          B. last                         C. the moment         D. present

The teacher recommended that Tom_____his composition as soon as possible.

     A. finish writing                                                   B. finished writing 

     C. should finish to write                                      D. finishes writing

She ______ on her computer for more than two hours when she decided to stop for a rest.  

     A. has worked                                                       B. has been working  

     C. was working                                                     D. had been working

 phân tích tác dụng của biện pháp tu từ được sử dụng trong câu văn sau:"... Ở đời này không có con đường cùng, chỉ có những ranh giới, điều cốt yếu là phải có sức mạnh để bước qua ranh giới ấy"?

The world work is developing very quickly. If you don’t self-learn continuously, we will not_____social movements.

     A. put up with                   B. keep up with         C. get on with          D. deal with

Today, the old couple has their family and friends _____ their golden wedding anniversary.

     A. attend                            B. to attend                C. attended              D. attending