III.
1. in 
2. for
3. by
4. on
5. with
6. to
7. with/in/for
8. from

VI .
1.Let's 
2. playing
3. to stay 
4.because - that
5. going

IV.
1. visit
2. are you doing/ am listening 
3. are you going to do/ are going to stay/ watch
4. does your mother go
5. are watching
6. jogs
7. do they want
8. are they going to do/ are going to visit

1. Let
=> Let's (let's là từ viết tắt của let us, câu này thiếu tân ngữ)
2. play
=> playing (sau what about + V-ing)
3. stay
=> to stay (sau cấu trúc S + be + going + to V)
4. talk
=> to talk (sau want là to V bạn nhé)
5. do not
=> don't

V:
4-3-7-1-8-6-9-5-2