Câu hỏi: – Do you have to buy this hat? – No, I _____. It isn't necessary.

A. mustn't

B. won't

C. needn't

D. don't need

Câu 1: The film was ______ through.

A. too long for us to see

B. very long for us to see it

C. too long for us seeing it

D. too long enough for us to see

Câu 2: If I __________a lot of money now, I ______________a new car.

A. have /will buy

B. have / would buy

C. had/ will buy

D. had/ would buy

Câu 3: It’s necessary __________ your listening and writing skills.

A. to improve

B. improve

C. improving

D. improved

Câu 4: He told me ___________ my best to study English.

A. try

B. trying

C. to try

D. tried

Câu 5: Your sister used to visit you quite often, ________?

A. didn't she

B. doesn't she

C. wouldn't she

D. hadn't she

Câu 6: Gold _______in California in the 19th century.

A. was discovered

B. has been discovered

C. was discover

D. they discovered