Jawaban:

2. John is eating an aple

3. She is sleeping

4. They are having breakfast

5. Ann is waiting for the bus

6. George is riding a bike

7. It is raining

8. The policemen are arresting a thief

9. The man is fishing

a. Are Bert and Homer watching TV?

b. Sheila is not reading a magazine

c. I am not singing

d. Is Mary driving?

e. am I playing chess?

f. Susan and Kevin are not cooking dinner

Penjelasan:

1-9 S + is/am/are + v-ing

a-f

is/am/are + S + v-ing + ? (interrogative)

s + is/am/are + not + v-ing (negative)