Câu hỏi: 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 1: In the USA students ________ school uniform.

A. wore

B. wearing

C. don't wear

D. not wear

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

A. to improve

B. improve

C. improving

D. improved

Câu 3: What should you consider before _________ for an exercise class?

A. sign up

B. to sign up

C. signing up

D. will sign up

Câu 4: Tom is watching TV now. So ____________.

A. does Mary

B. Mary

C. is Mary

D. Mary does

Câu 5: My mother told me __________ hard.

A. study

B. studying

C. to study

D. studied

Câu 6: Alice wasn’t ___________ to be in my class.

A. too old

B. old enough

C. so old

D. such old