Выберите правильный вариант

1. i don't recall having seen you before. are you sure we (meet)?
2. sally earns a lot of money; her new job is much (good) paid than the old one.
3. we went to (a, the, -) gladiator to see a new film because we (read) very good reviews. next saturday we (go) to hyde park, if it (not, rain).
4. i watched a documentary on tv last night. it was all about the problems (threatening, threatened) the environment. i (shock) to find out how little i (know) about globe warming or acid rains.
5. nature delicately (balance) and the extinction of one species (may, must, should) have a serious effect on (other, others, the others).
6. it is the fault of mankind that so many species (endanger), so it's our responsibility to protect those while we still can.
7. (famous) sporting event in the world, the olympic games, began in greece in 776 bc.
8. medieval sports were not as organized as events in ancient times: at fairs or festivals men (would, were used to) lift heavy stones and women (would, be used to) run races.
9. i'm sure he is not aware (at, in, of) the harm he (do) for us.
10. the old lady (could, was able to, must) identify the robber who (attack) her the previous day.
11. i'm sure that in this time of technology advances, we (find) already some way to solve the world's ecological problems.
12. many people feel (happy) when they are with friends than when they are on their own.
13. certain sports teams (support) by fans all over the world and individual athletes (see) as celebrities.
14. during the 18th and 19th centuries national organizations were formed which made sure that the rules (follow) and arranged regular sport competitions.
15. when i was a child, i (used to, was used to) love my dad's stories about africa. he (work) there for many years before i was born.
16. this dish (make) (from, at, on) a recipe given to me by my grandfather who was (a, an, the, -) excellent cook.
17. my idea of an ideal holiday (change) a lot in the past few years. nowadays, i'd much rather go away in spring when (most, most of, more) places (not, fill) with tourists.
18. 1 have just spoken to three women, (neither, none, either) of (whom, who, them) speaks spanish.
19. we (invite) some friends for dinner tonight. would you like to join (to, at, in, -) us?
20. she has been waiting for him for ten years already. if she (not, love) him, she (not, wait) so long.