46．-May I speak to your manager Mr.Williams at five o’clock tonight?

-I’m sorry. Mr. Williams ________ to a conference long before then.

A．will have gone B．had gone　 C．would have gone　　 D．has gone

45．-Why were you not at the concert?

　　　 -I________ a close game between two European football teams.

A．watched　　　　 B．had watched　　 C．was watching　 D．have been watching

44．We　_______　on　it　for　several　hours　but　we　have　not　yet　reached　any　conclusion.

A．work B．are　working　　 C．have　been　working　D．have　been　worked

43．I ____ to go for a walk, but someone called and I couldn’t get away.

A．was planning　　 B．planned 　 C．had planned　　 D．would plan

42．Salley________Beijing for Shanghai and________there ever since. You can go and pay her a

　　　 visit on your way to Hangzhou.

　　　 A．has left; worked　　　 B．left; worked　　　 　　　

　　　 C．has left; had worked 　　　 D．left; has worked

41．-Why do you look so worried?

-Fred left the company half an hour ago. His work _______ unfinished since.

A．left　 B．was left　　 C．has left　　 D．has been left

40. A new technique ____ out, the yields (收成) increased by 20% .

A. having working　　　　 B. having been working　

C. has worked　　　　　　 D. had been worked

39. ---What do you think of my suggestion?

--- Sorry. What's that? I ____ about something else.

A. thought B. am thinking　 C. was thinking D. had thought

38.--- Haven't I told you that I like the beef well done?

---Yes, but I _____ it longer than I usually do.

A. was cooking B.will cook　 C. cooked D. had cooked

37. I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.

A. isn't feeling　　 B. hasn' t been feeling　　

C. hadn't been feeling　　 D. wasn't feeling