Ответ:

1. C

2.A

3.B

4.C

5.C

6.A

7.A

8.C

9.C

10.D

11.gradually

12.overcome

13.chased

14.crowd

15.explore

16.natural

17.true

18.fast

19.public

20. go

21.1

22.1

23.1

24.2

25.1