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Ответ:

1. What were your parents doing at 5:30 pm yesterday?

They were cooking dinner.

2. What were you doing last night at 7:00 pm?

I was chatting on the Internet with my friends.

3. Was your sister sleeping at 8:00 am this morning?

No, she was not sleeping. She was taking a shower.

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1. what

2. why

3. who

4. when

5. which

Объяснение: