1. He (to go) to the park yesterday?
2. My sisters (to be) students now.
3. He (not/to be) very happy yesterday.
4. I (just/to eat) two apples.
5. They (to work) at the hospital from 8.00 to 16.00
6. My dog (not/to like) to play ball with me.
7. Mary (never/ to be) to the USA.

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