I

1.D

2.C

3.A

4.B

5.C

III

1.finishes

2.Do-eat

3.Are-singing

4.spending

5.has

IV

1.Mai is more intelligent than Kien

2.My brother is stronger than my sister

3.Life in the city is more exciting than life in the countryside

4.Doing our homework is more important than reading a novel

5.Ho Chi Minh city is bigger than Ha Noi capital

I/ 1.D    2.C    3.A     4.B     5.C 

III/ 1. School finishes at 4.30 pm every day.

2. Do you often eat lunch in the school canteen?

3.Listen! Are they singing in the classroom?

4. My family like spending our summer holidays at the seaside.

5. She has long black hair.

IV/ 1. Mai is more intelligent than Kien.

      2. My brother is stronger than my sister.

      3. Life in the city is more exciting than life in the country.

      4. Doing our homework is more important than reading a novel.

      5. Ho Chi Minh City is bigger than Ha Noi Capital.