4 C

5 A

6 B

7 D

8 C

9 A

10 B

Ex7

1 My brother is earning more than he was in his previous job

2 Beef is more expensive than Chicken

3 To my knowledge, listening to conversations in English is harder than speaking English

4 She has never had a more delicious lunch than this

5 Mr Long is the best doctor in this hospital

6 I have never driven a faster moving car than this

7 This castle is the oldest 

8 Is that the biggest shirt you have got?

9 I am the lowest one in the class

10 The company's revenue in the previous months were lower than in May

III

1 It's colder today than yesterday

2 It takes 4 hours to travel by car and fives hours by train

3 We were busier at work today than everyday

4 Jane's sister cooks worse than her

5 Nobody in this team can play football as well as Tom

IV

1 D
2 A

1 It is responsible for 20 percent of fresh water flowing into the world's oceans

2 No, it doesn't

3 It is about 6400 km long

4 It has more than 200 tributaries

sao ko tự làm ik đẽ thế mà phải hỏi

bài dễ thế mà cx phải hỏi, tự nghĩ đi

Ex4

1 has

2 am not solving

3 comes

4 begins

5 do you wake up

6 are you doing

7 don't work - am working

8 is not sleeping

9 do you review

10 is working

11 takes

12 is

Ex5

1 more exciting

2 more fantastic

3 better

4 faster

5 more valuable

6 larger

7 easier

8 farther

9 bigger

10 taller

11 longer

12 more dangerous

13 luckier

14 bigger - cheaper

15 more famous

Ex1

1 A

2 D

3 A

4 A

5 A

Ex2

1 A

2 A

3 A

3 C

4 A

Ex3

1 A

2 B

3 C

4 B

5 A

6 D

7 B

8 B

9 A

10 C

11 D

12 C

13 A

14 C

15 D

16 C

17 A

18 B

19 A

20 D

21 C

22 B

Prepare a map or we will be lost soon

1 interesting

2 natural

3 well

4 discussion

5 chilhood

6 dangerous

7 information

8 tourist

9 comfortable 

10 cheaper

cảm ơn ạ

Ex8

1 than

2 than

3 as

4 as

5 as

6 than

7 than

8 as

Ex9

2 A mile is farther than a kilometer

3 The sky blue is paler than a navy blue

4 A dolphin is cleverer than a snake

5 Gold is more valuable than silver

6 Yoga is more relaxing than football

7 Wind energy is cleaner than nuclear energy

8 A billionaire is richer than a millionaire

Ex10

1 from

2 peaceful

3 flowers

4 for

5 however

6 carpet

7 often

8 warer

9 path

10 fresh

Ex11

1 interesting

2 natural

3 well

4 discussion

5 childhood

6 dangerous

7 information

8 tourist

9 comfortable 

10 cheaper 

Ex6

1 to eat

2 any

3 to do

4 is going to visit

5 is driving

6 must

7 much

8 going

9 a

10 to have

11 many

12 dozen

1. some - any

2. some - some

3. any

4. any - a

5. any - some

6. any

7. some - any

8. an - a

mg trả lời giúp mik nha 

thank