Помогите с английским, пожалуйста.1. I prefer ..... jeans in winter and

Помогите с английским, пожалуйста.
1. I prefer ..... jeans in winter and light shorts in summer.
a) wearing b) to wear c) wear
2. It started to drizzle and we hoped it would cease soon, but ..... stopping the rain increased.
a) for b) instead of c) by
3. David found a small frog ..... walking near the pond in his garden.
a) by b) without c) while
4. The teacher had to stop several times ..... the rule because she saw that it was difficult for the children to understand it.
a) explaining b) to explain c) explain
5. Mind your manners! You should wash your hands ..... sitting down to dinner.
a) on b) while c) before
6. Janet was a wonderful dancer. I couldnt help ..... .
a) being impressed b) to be impressed c) be impressed
7. Why would you suggest ..... her? She can cope with the task all by herself.
a) help b) helping c) to help
8. I wish the weather would get better. I am tired ..... having to be indoors all the time.
a) at b) about c) of
9. Sheila is very upset. She isnt used ..... being treated like that.
a) on b) to c) in
10. Dont switch off the light. The child is afraid ..... in the dark.
a) of sleeping b) to sleep c) sleep
11. The comedy was hilarious, but somehow I didnt feel like ..... . a) laugh b) laughing c) to laugh
12. Dont be afraid ..... into the swimming pool; its quite deep.
a) of diving b) diving c) to dive
13. I would like ..... you and some of my other friends for dinner some time.
a) invite b) inviting c) to invite
14. Where do you and your friends plan ..... for the next summer vacations?
a) go b) going c) to go
15. I am not at all sure if Arthur is really interested ..... the truth.
a) in learning b) to learn c) learn
16. The conference closed ..... discussing about a dozen reports.
a) by b) after c) before
17. Agatha, would you mind ..... this letter on your way home?
a) to mail b) mailing c) being mailed
18. Ben asked to excuse him ..... not being able to get in touch with me.
a) on b) while c) for
19. Lets get together tonight. I want to talk about ..... a new business.
a) opening b) open c) to open
20. I wish the weather would get better. I am tired ..... having to be indoors all the time.
a) about b) at c) of