改错题（括号内代表ABCD,指出错误并改正）

改错题（括号内代表ABCD,指出错误并改正）
I think (it) is (no) need (to tell) him all (that) you know
2.They are (preparing) for the (final) examination,They (mustn't) be (free)
3.(In) the morning people woke up and (found) the world outside their houses (sompletely) (change)
4.(It) is(much) (exciting)to watch a football match than (to see)a film
5.(It's) (surprised) to hear (that) he has decided (to leave) for England.
6.Only (half) of the members (was) (for) (the new plan)
7.This meeting is of (great) (important)(to)(all of us)
8.The old man asked me (how he could) go to (the haspital),(looked) (worried)
9.(Which) is well-know (to) us all,(many) people died(during) the war time
10.(How) (highly)he (jumped) in the sports (meeting)
11.Great (changes) (have been) (taken place) in my hometown (since) 1998
12.(Seeing) from the top of the hill,the city (looks) (much) (more)beautiful
13.(You'd better)(not to be)last (for)the meeting (again)
14.If you (had come) (a few) minutes (earlier),you (would meet) the scientist
15.