/

1.Lan and Mai

2.they are rehearsing   for the teacher's day

3.Hung and Tuan

4.Ha and Thanh

//

1.   30

2.a rock musician who become a teacher

3.1998

4.how to play in front of a real audience 

5.haundred of young people

=>
I/
1. Lan and Mai.
2. They are rehearsing a play for the Teacher's day.
3. Lan and Mai.
4. Hung and Tuan.
5. Ha and Thanh.

II/
1. There are over 30 schools of rock in different towns in he USA.
2. It's about a rock musician who became a teacher.
3. in 1998.
4. He teaches students to play in front of a real audience. 
5. He has already taught hundreds of young people to be rockperrformers.