Câu hỏi: Thank you for letting me …….. your dog for a walk.

A. take

B. to take

C. taken

D. taking

Câu 1: You must be responsible …………. your study.

A. in

B. from

C. for

D. at

Câu 2:  We …… a lot important inventions in the future.

A. have

B. will have

C. had

D. has had

Câu 3: "Can I ask you something?" "Not now, I………. my report."

A. am writing

B. write

C. will write

D. wrote

Câu 4: How long ……. you studied here?

A. are

B. did

C. do

D. have

Câu 5: He ……. in the office at the moment.

A. has work

B. is working

C. has been working

D. works

Câu 6: She ……… here since I came here.

A. lives

B. lived

C. is living

D. has lived