V.

1. stays

2. is working

3.  Why did you leave...

4. will go

5. have played - was

6. brushed - forgot

7. hearing

8. brushing

VI.

1. Where did we meet her last night?

2. How many times a day does Nga brush her teeth?

3. Who does Nam play badminton with?

4. When did your father in Ha Noi?

5. Why did she go to the doctor?

6. What are the students doing at the moment?

7. What time did he have an appointment?

8. How did they travel to the USA last month?

V. Words form :

 1. stays

 2. is working

 3. Why did you leave ...

 4. is going to

 5. played / was

 6. brushes / forgot

 7. hearing

 8. to brush

VI. Make questions:

 1. Where did we meet her last night?

 2. How often does Nga brush her teeth?

 3. How long was your father in Ha Noi?

 4. Who did Nam play badminton with?

 5. Why did she go to the doctor?

 6. What are the students doing at the moment?

 7. What time did he have an appointment?

 8. How did they travel to the USA last month?