5. C

6. D

7. A

8. A

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1. is smaller than her old one ( hoặc is not as big as her old one)

2. is the tallest student in my class

3. is cheaper than the black one ( hoặc is not as expensive as the black one)

4. is more difficult than English

5. is the most intelligent student in my group

6. is the longest river in the world

7. No mountain in the world is higher than Mount Everest

8. the prettiest girl that I have ever met

Ex3:

5,C.

6,D.

7,D.

8,A.

Ex4:

1,Her new house is smaller than old one.

2,Peter is the tallest in my class.

3,The white dress is cheaper than black one.

4,According to me,Maths is difficult than English.

5,Mary is the most intelligent in my group.

6,The Nile is the longest river in the world.

7,No mountain in the world is taller than Mount Everest.

8,She is the prettiest girl I have ever met.

*CHÚC BẠN HỌC TỐT*