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

A. in

B. at

C. for

D. to

Câu 1: 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 2: – 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 3: My mother told me __________ hard.

A. study

B. studying

C. to study

D. studied

Câu 4: ___________ she was not well, she still went to work.

A. Because

B. Because of

C. Although

D. In spite of

Câu 5: It’s necessary __________ your listening and writing skills.

A. to improve

B. improve

C. improving

D. improved

Câu 6: My friend and I _______ your sister tomorrow afternoon after she _______ her work.

A. will meet-will finish

B. will meet-has finished

C. will have met-has finished

D. will have met-will finish