Câu hỏi: The librarian told us not …………………… reference books out of the library.

A. to take

B. taking

C. take

D. took

Câu 1: The librarian asked us _______ so much noise.

A. not to make 

B. no make

C. not making

D. don’t make

Câu 2: I wish I _________to him. Now it is too late.

A. had listened

B. would listen

C. listened

D. have listened

Câu 3: People who exercise frequently have greater physical endurance than those who doesn’t.

A. who

B. frequently

C. than

D. doesn’t

Câu 4: She speaks English as …………………… as I do.

A. good

B. better

C. very good

D. well

Câu 5: How long ….. you studied English?

A. has

B. have

C. do

D. did

Câu 6: My mother always worries ______________ when I don't come home by midnight.

A. about

B. with

C. to

D. at