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: ___________ she was not well, she still went to work.

A. Because

B. Because of

C. Although

D. In spite of

Câu 2: It’s necessary __________ your listening and writing skills.

A. to improve

B. improve

C. improving

D. improved

Câu 3: When my father was young, he _____ work in the garden for long hours.

A. can

B. could

C. will

D. should

Câu 4: In the Us, the first stage of compulsory education_______as elementary education.

A. to be generally known

B. is generally known

C. generally known

D. is generally knowing

Câu 5: He came up with the solution __________ every problem.

A. in

B. at

C. for

D. to

Câu 6: What should you consider before _________ for an exercise class?

A. sign up

B. to sign up

C. signing up

D. will sign up