Jawaban:

A. He has been sick since Saturday.

=> Negative : He hasn't been sick since Saturday.

=> Interrogative : Has he been sick since Saturday?

B. He has had this motorbike for 5 years.

=> Negative : He hasn't had this motorbike for 5 years.

=> Interrogative : Has he had this motorbike for 5 years?

C. While he was jumping, she was watching him.

=> Negative : While he was jumping, she wasn't watching him.

=> Interrogative : Was she watching him while he was jumping?

D. He had worked very hard before he finally won.

=> Negative : He hadn't worked very hard before he finally won.

=> Interrogative : Had he worked very hard before he finally won?

E. All his teeth will have come in by next year.

=> Negative : All his teeth will not have come in by next year.

=> Interrogative : Will all his teeth have come in by next year?

F. He will have worked for us for 10 years next August.

=> Negative : He will not have worked for us for 10 years next August.

=> Interrogative : Will he have worked for us for 10 years next August?

G. Tomorrow he will have been sick for 2 weeks.

=> Negative : Tomorrow he will not have been sick for 2 weeks.

=> Interrogative : Will hehave been sick for 2 weekstomorrow?

H. We will be doing business next year.

=> Negative : We will not be doing business next year.

=> Interrogative : Will we be doing business next year?

I. Janet will be talking, and Emily will be listening to every word.

=> Negative : Janet will not be talking, and Emily will not be listening to every word.

=> Interrogative : Will Emilybe listening to every wordJanet will be talking?

J. We had talked about visiting the museum.

=> Negative : We hadn't talked about visiting the museum.

=> Interrogative : Had we talked about visiting the museum?