1 A

2 B

3 D

4 C

5 D

6 C

7 D

8 A

9 B

10 B

11 B

12 D

13 C

14 B

Ex1:
1. might have
2. had to 
3. didn't have to
4. could
5. shouldn't have
6. couldn't have
Ex2:
1. don't have to
2. must
3. Do you have to /don't have to / must
4. do not need to / must

help

27. has never been

28. created

29. However

30. disconnecting

31. through

32. has become

33. with

34. to explore

35. However

32. has become
33. with
34. to explore
35. However
36. prevent

Help

b b c a d

b a b a b

A

C

B

b b c a d

1 B

2 B

3 D

4 A

5D 

1.Al Gore, who won the Nobel Prize, gave a long and boring speech.

2. Starbucks, which does business all over the world, wants to open new stores in China.

3. Social network sites, which are very popular, will definitely change business.

4. Scientists are working with stem cells, which will revolutionize medicine.

5. Last week, Jim Taylor interviewed Sally Thomson, who is my neighbour.

6. Mr Brown, who enjoys going to the theatre, has been invited to join our club.

7. Whiting House, which was built in 1856, is an important local monument.

8. Bono, who is a famous musician, signed autographs at Tower Records yesterday.

9. John F. Kennedy, who was president of the USA, was assassinated in 1963.

10. The Queen will open a new hospital, which is in Jarvis Street.

Tờ 1

41 It's very important to use body language in communication

42 Despite her age, she still leads an active life

43 My mother said that you had to decorate the room carefully

44 People recycle old cans to make new ones

45 Tim is always forgetting his homework

46 T

47 F

48 T

49 T

50 F

Tờ 2

17 C => hard

18 do => make

19 D => has

20 to go => going

21 A => At

22 B => to

23 C => beautifully

24 D => five-star

25 is => was

V

26 would travel

27 be

28 to buy

29 has spoken

30 Has - just been finished

VI

31 for

32 as

33 about

34 with

35 than

VII

36 development

37 exploration

38 behavior

39 deforestation

40 specialness