Câu hỏi: 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

Câu 1: Ms. Brown asked me _________ in my class.

A. how many students there were

B. were there how many students

C. how many students were there

D. there were how many students

Câu 2: If you ________a wallet in the street, what would you do with it?

A. found

B. have found

C. find

D. had found

Câu 3: Sleeping, resting, and to drink fruit juice are the best ways to cure for a cold.

A. Sleeping

B. to drink

C. juice

D. best ways

Câu 4: _________, 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 5: George is not enough intelligent to pass this economics class without help.

A. enough intelligent

B. to pass

C. economics

D. help

Câu 6: Sports clear my mind. They also help me maintain a healthy lifestyle.

A. Not only do sports clear my mind, but they also help me maintain a healthy lifestyle.

B. Neither do sports clear my mind nor help me maintain a healthy lifestyle.

C. Sports clear my mind so that I can maintain a healthy lifestyle.

D. All that sports can do is to clear my mind instead of maintaining a healthy lifestyle.