Câu hỏi: After our guests ………, we sat down to dinner.

A. arrived

B. arrive

C. were arriving

D. have arrived

Câu 1: Her success ………. passing the exam made her parents very happy.

A. in

B. with

C. up

D. to

Câu 2: No one likes being laughed ……….. .

A. at

B. with

C. for

D. on

Câu 3:  ….. you at home last night? 

A. Did

B. Were

C. Have

D. Are

Câu 4: Thank you for letting me …….. your dog for a walk.

A. take

B. to take

C. taken

D. taking

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

A. has work

B. is working

C. has been working

D. works

Câu 6:  We …… a lot important inventions in the future.

A. have

B. will have

C. had

D. has had