选哪一个？为什么，请详细写出其余选项为什么不对！谢谢
1.Henry talks to his dog as if it __ him. A.understands B.understand C.understood D.would understand
2.If I __ time, I __ you do the work. A.had, would help B.have, will help C.had, helped D.have , would help
3.Would you please __ the window?It's too cold outside.
A.open B.opening C.not open D.not to open
4.He was made __ all night . A.laughing B.laugh C.to laugh D.laughed
5. __ his new glasses makes Tom __ mysterious. 【 这句话是什么意思？】 A.Putting on, look B.Put on ,looks C.Wearing,looks D.Wearing ,look【它们之间有什么区别?】
6.-Ann has made great progress recently【 这句话是什么意思？】
-__ and __. A.So has she,so have you B.So has she ,so you have
C.So she has ,so you have D.So she has ,so have you【它们之间有什么区别?】
7.__ exciting news! We've never had __ long vacation before.【 这句话是什么意思？】
A.What,such a B.What an ,such a C.How,such a D.What, so a【它们之间有什么区别?】
8.It is difficult for us to learn a lesson in life __ we've actually had that lesson.【 这句话是什么意思？】 A.when B.after C.since D.until
9.She was __ well dressed that she attracted everyone's attention at the party. 【 这句话是什么意思？】A.so B.quite C.too D.very.
10.We didn't enjoy the picnic __ there was a sudden rain.
A.if B.but C.because D.however