Câu hỏi: What the woman was saying were so important that I asked everyone to stop talking and listen.

A. What

B. was saying

C. were

D. to stop taking

Câu 1: An endangered species is the one _________ population is so small that it is in danger of becoming extinct.

A. which

B. what

C. whose

D. who

Câu 2: After David _________ his homework, he went straight to bed.

A. had finished

B. has finished

C. was finished

D. finished

Câu 3: The proposal seemed like a good idea. The manager refused it.

A. The manager didn't like to proposal because it didn't seem a good idea.

B. Since the proposal seemed like a good idea, the manager refused it.

C. The manager refused the proposal although it seemed like a good idea.

D. The proposal didn't seem like a good idea, so the manager didn't accept it.

Câu 4: People say that Cameron was the best director of his time.

A. Cameron is said to be best director of his time.

B. Cameron was said to have been the best director of his time.

C. It was said that Cameron was the best director of his time. 

D. Cameron is said to have been the best director of his time.

Câu 5: _________, we would have been forced to sack him.

A. Were he not to resign

B. If he resigned

C. Had he not resigned

D. If he had resigned

Câu 6: Some snakes have hollow teeth they are called fans that they use to poison their victims.

A. Some 

B. they are called

C. use

D. their