chiều cao là:

930:30=31

Có mấy loại cacbohiđrat quan trọng ?

A. 1 loại

B. 2 loại

C. 3 loại

D. 4 loại

Choose the sentence which is closest in meaning to the printed one. You should have persuaded him to change his mind.

A. It was essential to persuade him to change his mind but you didn’t

B. You persuaded him to change his mind but he didn’t listen

C. You didn’t persuade him to change because he didn’t mind

D. It was difficult to persuade him to change his mind

Choose the best answer. I regret______able to attend your birthday party yesterday.

A. Not to be

B. To not be

C. Not be

D. Not being