Use: much or many 1. i don't eat mangoes. 2. he does not eat fish. 3. she ate so dessert that she is in bed today with a stomachache. 4. he had got so pairs of socks. 5. please don't put pepper on the meat. 6. there were too plates on the table. 7. i never eat bread with soup. 8. why did you eat so ice cream? 9. she wrote us not very letters from the country.

Существительные исчисляемые, т.е которые могут стоять во множественном числе, то перед ними будет many, а перед неисчисляемыми, т.е которые не могут быть во мн.числе будет much. Например many books (в конце сущ. стоит окончание мн.числа -s, es); much water, much juice(sugar, milk, butter, coffee, fish, bread, desert, soup, ice-cream)

1. of
2. of
3. in
4. of
5. with
6. about
7. with

1. Londoners are proud of their parks and gardens.
2. London's parks are full of trees, flowers and water.
3. You can also take part in different activities there such as tennis, swimming and horse-riding
4. The Royal Parks are the property of the Royal Family
5. Hyde Park is famous with Speaker's Corner
6. Anyone can make a speech about something you think to be important.
7. St. James Park is very beautiful with flowers beds and trees and view of Buckingham Palace.
Вроде бы так

1) Can you jump high?
2) Can I try on this coat?
3) We must wear the uniform.
4) I can play football.
5) He can wright.
6) I would like to go to the cinema.
7) Would you like a coffee?
8) I must have left my umbrella in that bakery. 
9) You shouldn’t have danced so much at the party. 
10) I think you ought to follow his advice.
11) I must do it.
12) He ought to go to the school. 
13) I can drink five glasses of water for thirty seconds.
14) He couldn’t win the competition yesterday.
15) It can’t be him!
16) You must see this new movie, it’s awesome!
17) You must pay you bills in restaurants.
18) I think you shouldn’t come home late.
19) The toothache is unbearable; I have to go to the dentist.
20) Shall I ignore him?