I had hoped Mr. Smith______ me an early reply.

A. come B. are coming

C. came D. have come

A. didn't ever meet B. have never met

C. have ever met D. never met

A. to get B. shall get

C. will get D. will have gotten .

A. waited B. was waiting

C. has waited. D. had been waiting .

A.increase fossil fuels

B.purify the w~iter

C.solve social issues

D.protect environment

A.whatever B.though C.however D.if

A. forgotten B. laid C. remained D. left

A. I can B. I could C. I will D. I would

A. inform B. informs C. informed D. has informed

A. don’t think B. didn’t think C. would not think D. had not thought