III.
1.B
2.C
3.A
4.D
IV.
1.Mrs.Hoa speaks English quite well.
2.He suggested reading English books.
3.She has worked in the factory since 2004.
4.Mai wants to go home because she feels sick.
V.
1.These exercises can be done easily by them.
2.She said that she wouldn't buy that car because it is very old.
VI.
1.It is necessary to protect the environment.
2.If Lan lived in Ho Chi Minh City,she would visit Sai Gon Water Park now.
