Câu hỏi: At the end of the story, the prince and princess fall _________ love with each other.

A. in

B. on

C. for

D. at

Câu 1: – 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 2: What should you consider before _________ for an exercise class?

A. sign up

B. to sign up

C. signing up

D. will sign up

Câu 3: My mother told me __________ hard.

A. study

B. studying

C. to study

D. studied

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

A. try

B. trying

C. to try

D. tried

Câu 5: There _______ a flower vase, a jar of jam, and some flour on the table.

A. be

B. is

C. are

D. were

Câu 6: He came up with the solution __________ every problem.

A. in

B. at

C. for

D. to