Câu số 21:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Up to now, they have not made a                      whether they will go or not.

Câu số 22:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

I suggest that John                    the directions carefully before assembling the

bicycle. He doesn't want the wheels to fall off while he is riding down a hill.

Câu số 23:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

We should avoid                  personal questions.

Câu số 24:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Sarah and I                  reserved the rooms in the same hotel. She was really surprised to see me there.

Câu số 25:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

We have just visited disadvantaged children in an orphanage                     in Bac Ninh Province.

Câu số 26:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

If he hadn't wasted too much time, he                   in his examination.

Câu số 27:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The mother              her little son. She gives him whatever he wants.

Câu số 28:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Mike painted his bedroom black. It looks dark and dreary. He                 a different colour.

Câu số 29:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Air pollution is getting                serious in big cities in the world.

Câu số 30:  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

I                    to play the piano for five months but I haven't been very successful at this.