学生非谓语动词学的很差 有很多题不会， 请大家教教我， 谢谢！请写出答案，和原因。原题意思，感激不尽！
1：You are not allowed--your car here
A:park B: parking C:to park D:to be parked
2:--that is was raining,he went back to get the raincoat
A:see B:to see C:seen D:seeing
3:It's very warm today,why not--?
A:go out for a walk B:went out for a walk
C:will go out for a walk D:to go out for a walk
4:Spring is coming,it's time--threes
A:to plant B:plant C:plantingD:be planting
5:--more time,he could have done the work better
A:to be given B:giving C:to give D:given
6:Mary is going to have the clock--
A:repairing B repair Crepaired D to repair
7:She like--swimming with us
A:to B:going C:goes D:went
8:--finished the job,they worked more hours
A:Having been not B:Not having C:having not D:not had
9:The--girl sat in the corner,crying.
A:frighten B:frightened C:frightening D:fright
10:--for nearly 7 years in African forest,he decided to return homes.
A:worked B:working C:having worked D:being worked
11:nothing could make me--my ideas
A:change B:to change C:changing Dchanged
12:When I entered the room, I found him--on the floor
A:lying B:laying C:laid D:lied
13:Did you see him steal the TV set? I didn't see him--it,but i saw him--it
A:be stealing-looking at B: take-carrying
C:watch-fetch D:finding-seeing
14:Tom was seen--to the classroom
A:to go B:go C:going D:went
15:He told Tom--silly questions
A:to not ask B:not to ask C:to ask not D:don't ask
16:--is easier than doing
A:talking B:talk C:talked D:to talk
17:I'd like to go to the post office,but i don't know--
A:where to goB:which bus to take
18:---his telephone number,she had some difficulty getting in touch with Bill
A:not knowing B:knowing not C:not known D:know not
19:He had no choice but--the classroom with her classmate
A:to clean B:clean C:cleaning D:cleans
20:The light in the office is still on, I forgot---
A:turning it off B:turn it off
C:to turn it off D:having turned it off.