Ex3 : 
1. catch 

2. wears 

3. drink 

4. goes 

5. has

6. cut 

7. watches

8. teaches.

Ex4 :

1. doesn't study 

2. has 

3. have 

4. doesn't study 

5. teaches 

6. likes 

7. washes 

8. don't have

Ex5 :
1. .................................

2. Does he sometime stay up late ?

3. I always do the housework with my brother.

4. Peter and Mary never come to class on time.

5. Why does Johnson always get good marks ?

6. Do you usually go shopping ?

7. She seldom cries.

8. My father never has popcorn.

Ex6 :

1. She doesn't sleep late at the weekends.

2. We don't believe at the Prime Minister.

3. Do you understand this question ?

4. They don't work late on Fridays.

5. Does David want some coffee ?

6. She has three daughters.

7. When does she go to her Chinese class ?

8. Why do I have to clean up ?

exercise 3:

1catch 2wears 3drink 4goes 5has 6cut 7watches 8teaches

exercise 4:

1doesn't study 2has 3have 4doesn't study 5teaches 6likes 7washes 8don't have

exercise 5:

2. Does he sometime stay up late ?

3. I always do the housework with my brother.

4. Peter and Mary never come to class on time.

5. Why does Johnson always get good marks ?

6. Do you usually go shopping ?

7. She seldom cries.

8. My father never has popcorn.

exercise 6 :

1. She doesn't sleep late at the weekends.

2. We don't believe at the Prime Minister.

3. Do you understand this question ?

4. They don't work late on Fridays.

5. Does David want some coffee ?

6. She has three daughters.

7. When does she go to her Chinese class ?

8. Why do I have to clean up ?

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