Write only one option (one form).  

1.  The girl was afraid. She  (not/fly) on a plane before.

 

2.  The apartment was dirty. They  (not/clean) it for a long time.

 

3.  The dog was really hungry. Mary  (not/feed) it since Monday.

 

4.  Derrick was very tired. He  (not/sleep) at all.

 

5.The house didn't fall down. Luckily, the termites  (not/eat) all the floors as originally thought.
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