Lan doesn't get on well with her neighbor any more.

 Trung and Nga didn't decide to move to a bigger house until after the birth of their third child.

Only when 

Trung and Nga didn't decide to move to a bigger house until after the birth of their third child.

If you don't do your homework, you will be punished.

I advised you to stop smoking.

This is the last time I go to that country.

 I certainly 

The lesson was so boring that I fell asleep.

The lesson was so boring that I fell asleep.

It isn't necessary for you to do this exercise today.

"Would you like to come to my party tomorrow?" Nam invited me.

Tuan is my boyfriend. His father is a doctor.

Mr David remembered the most important date, and so did his wife.

Mr David didn't 

The man tried to escape but the police stopped him.

  When Peter was given the first prize, he felt so happy.

 Nobody could believe the story she told us. (beyond)

The president is unlikely to call an election (likelihood)

 She made every effort to pass the exam. (best)

  He allowed me to use his car whenever I liked.(disposal)

The two bags appear to be completely different. (common)

While I strongly disapprove of your opinion, I will help you this time.

  I had only just put the phone down when she rang back.

Scarcely           

 We couldn't do the homework until all the guests had left here.

  "That's a nice shirt, Lan"said her mother.

Lan's mother complimented 

  I am amazed by the mistakes he makes.

$Tìm x: A=2^{100}-2^{99}+2^{98}-297+...+2^2-2$

Phương trình : cotx - tanx + 4sin2x = $\frac{2}{\sin 2x}$ có bao nhiêu nghiệm trên ( 0 ; 2$\mathrm{\pi }$ )

$Tìm x: {(2x-1)}^{10}={49}^5$