20. –Mr Zhu, can I go to meet you at four tomorrow afternoon?

–All right, I _____ to my office from a conference by then. I will be waiting for you there.

A. have come back　 B. will come back　 C. will have come back　 D. will be coming back

19. The committee is discussing the problem right now. It will _____ have been solved by the end

of next week.

　 A. eagerly　　 B. hopefully　　 C. immediately　　 D. gradually

18. I am fortunate enough to get a job that I love and _________, I can walk to work within 10 minutes. A. what’s more　　　 B. that is to say　　　 C. as a result　　　　　 D. on the other hand

17.-Are you sure the delegation will come to our school next week?

-　　　　　　 . The head of it has just emailed me about the departure time of their flight.

A. No wonder　　 B. Definitely not　 C. Don’t mention it　 D. You bet