1.I would love ____to the party last night ,but I had to wor
1.I would love ____to the party last night ,but I had to work extra hours to finish a report.
A.to go B to have gone 为什么不选A?选B又是为什么?
2 ___many times,but he still couldn't understand it.
A,Having being told C He was told 那个是正确的,为什么?
3.I smell something ___ in the kitchen.Can I call you back in a minute?
A.burning ,B burnt C,being burnt D,to be burnt 选那个为什么?
4,The country has already sent up three unmanned spacecraft,the most recent _having been launched__at the end of last March.为什么用having?
5--Robert is indeed a wise man.
-oh,yes.How often I have regretted____ his advice
A,not to take ,B not taking ,选那个为什么?
6.-Come on,please give me some ideas about the project.
-sorry,with so much work ___ my mind ,I almost break down
A,filling ,B filled 选那个,为什么?
7.___that she didn't do a good job,I don't think I am abler than her.
A to have said B having said C to say D saying .
选那个为什么?是不是选D?不选D又是为什么?
8.The glass doors have taken the place of the wooden ones at the entrance,____in the natural light during the day
A letting ,B to let ,选的是A,to do不是表示目的吗.为什么不选B?
9____What does the sign over there read?
____No person ___ smoke or carry a lighted cigarette,cigar or pipe in this area.
A,will B,may C,shall D must
选那个,为什呢?
10.__in thought,he almost ran into the car in front of him.
A,lost B,losing
选那个为什么?