1 A

2 A

3 B

4 A

1 Thanksgiving day is often celebrated by American peopl on the fourth Thursday of November 

2 Jenifer asked us what we and our colleagues were going to do the next Sunday

3 Unless Miss Loren practice speaking English everyday, she can't improve her English considerably

4 I haven't spoken to her for two years

5 My mother dances more gracefully than them

6 Because science and technology has developed, our lives are becoming more comfortable

1 It often take visitors 20 minutes to reach the peak of Fansipan Mountain

2 Yes, it will

3 It connected Sapa town and the peak of Fansipan Mountain

4 They are Silver Water Fall, Ham Rong Mountain,...Muong Hoa Valley

IV

1 saving

2 to pass

3 were playing

4 have returned

V

1 considerably

2 equipped

3 competition

4 unpolluted

1. C

2. A

3. B

4. B

1 C

2 A

3 B

4 B

8 A

9 A

10 A

11 B

12 C

13 D

14 C

15 C

16 D

1 D

2 D

3 C

4 A

II

1 C

2 A

3 A

4 D

5 A

6 A

7 D

1 Thousands of buildings in Japan were destroyed by the earthquake in 2014

2 The son asked his mother why she wanted him to take the course

3 If Miss Edison explained the lecture to him quickly, he would understand it

4 He hasn't taken his children to the zoo since they were 5 years old

5 Mr Bruce teaches Math more strictly than Miss Betty

6 Although Coal is the most polluting of fossil fuels, it is still the largest source of energy worldwide

1 They did them to make everyone more aware of the dangers of climate change

2 They used recycled car tyres to make the stage

3 Over 100 musicians and celebrities took part in the live shows?

4 It is not too late to change things

1 D

2 A

3 A

4 D