Bài 2 :
1. am
2.doesn't study
3.don't
4.has
5.have
6.doesn't read
7.are .. doing
8.aren't listening
9.is siting
10.is / are playing
Bài 3 :
1.making
2.wasshes
3.doesn't
4.joining
5.do
6.aren't
7.(6) bên trái :doesn't work
8.play
Bài 4 :
1.B
2.B
3.B
4.A
5.B
Bài 5:
1. What can I go to buy beef ?
2. Who does Lan go to the zoo with ?
3. How often do they go to the zoo ?
4. How long is she going to stay?
5.What does your daughters do every morning ?