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.
1. Hasn't flown
2. Haven't cleaned
3. Hasn't fed
4. Hasn't slept
5. Haven't eaten