C. has lost; haven’t found D. is missing; haven’t found
39. ______ it with me and I’ll see what I can do .
A. When left B. Leaving C. If you leave D. Leave
40. --- How are you planning to travel to Shanghai? --- I ______ yet, but I ______ taking a train.
A. didn’t decided; am considering B. haven’t decided; consider
C. haven’t decided; am considering D. hadn’t decided; have considered
41. ---Excuse me, sir. Would you do me a favor? --- Of course. What is it?
--- I ______ if you could take me to the station.
A. would wonder B. did wonder C. was wondering D. had wondered
42. ---Got your driving license? ---No. I ______ too busy to have enough practice, so I didn’t take the driving test last week. I’m going to next week.
A. was B. have been C. am D. had been
43. With the development of science, more new technology ______ to the field of IT.
A. has introduced B. is being introduced C. is introduced D. was introduced
44. ---Who’s the man over there? ---It’s Jack. ---Oh? ______ in Italy.
A. I think he’s B. I’ve thought he’s been C. I thought he was D. I’d thought he’d been
45. ---I dropped in at your house at about ten last night, but you weren’t in.
---I ______ regular exercises at the club.
A. did B. was doing C. had done D. have been doing
46. ---Each of the students, working hard at their lessons, ______ the book. ---So have I.
A. is reading B. has read C. reading D. reads
47. The baby is generally healthy, but every now and then he ______ a cold.
A. has caught B. is catching C. will catch D. does catch
48. It is when the plane ______ that you’d better find out at the booking office.
A. would take off B. had taken off C. was taking off D. is taking off
49. ---I’m sorry, but there’s no smoking on this flight. ---Oh, I ______ that. Sorry, I won’t again.
A. don’t know B. didn’t know C. won’t know D. haven’t known
50. I thought Jim would say something about his school report, but he ______ it.
A. doesn’t mention B. hadn’t mentioned C. didn’t mention D. hasn't mentioned