?Can I help you, sir?

?Yes, I bought this radio here yesterday, but it ________.

A. didn't work

B. won't work

C. can't work

D. doesn't work

?Hurry up! It's time to leave.　　

?OK. ________.

A. I'm coming

B. I'll come

C. I've come

D. I come

?Nice to see you. I ________ you for a long time.　　

?I ________ in Beijing. I've just come back.

A. hadn't seen; am

B. haven't seen; was

C. didn't see; will be

D. haven't seen; shall be

?________ to the United States?

?No, never, but I went to Canada a few years ago.

A. Have you been

B. Have you gone

C. Did you go

D. Will you go

?Excuse me, look at the sign "NO PHOTOS"!　　

?Sorry, I ________ it.

A. don't see

B. didn't see

C. haven't seen

D. won't see

?The train is leaving right now, but David hasn't arrived yet.

?Well, he said he ________ here on time.

A. came

B. will be

C. would come

D. can be

The shop was quite new, for it ________ only the week before.

A. had opened

B. was opening

C. has been open

D. is opened

How many times ________ you ________ to Beijing this year?

A. have; been

B. had; been

C. have; gone

D. had; gone

Tom ________ the CD player for two weeks.

A. has lent

B. has borrowed

C. has bought

D. has had

?Do you know Jack well?

?Certainly. We ________ friends since ten years ago.

A. were

B. have made

C. have become

D. have been