Помогите выполнить эти задания и как их понять

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- Who is in the kitchen?
- …..

Nobody. b. Anything. c. Anybody
2. If people stopped dropping litter on the streets, our cities ….. much cleaner.

have been. b. be. c. would be
3. A toothbrush is something ….you clean the teeth with.

where. b. which. c. who
4. I've got …..money in my wallet.

not any. b. any. c. no
5. A lawn mower is something …..cuts grass

which. b. where. c. who
6. Boston is located…..the east coast of the USA.

on. b. in. c. at
7. If I …. you, I would take up guitar lessons.

was. b. am. c. were
8. Has…. called me today?

anyone b. no one. c. someone
9. Paraguay is….the heart of South America.

on. b. at. c. in
10. If Sue …..the lottery, she would buy a house near the sea.

wins. b. will win. c. won
11. There aren't …..cookies in the cookie jar.

any. b. some. c. no
12. There is ….sugar in the cupboard.

a few. b. some. c. any
13. A theater is a place….you can watch a performance.

where. b. who. c. which
14. If Bob….up earlier, he would arrive at work on time.

was waking. b. wakes. c. woke
15. A garage is a place ….you can park your car.

which. b. where. c. who
16. Tony wants to go on holiday….in the Caribbean Sea.

someone. b.something. c. somewhere
17. A doctor is someone…..treats sick people.

who. b. where. c. which
18. A coach is someone….trains athletes.

which. b. where. c. who.
19. Marceille is situated ….the south if France.

in. b. at. c. on
20. If Lucy …..so many sweets, she would not be overweight.

doesn't eat. b. didn't eat. c. won't eat