1. I didn’t understand the lesson, so I asked _______ .

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2. _______ think English grammar is difficult.

3. _______ of books were delivered to the school yesterday.

4. Their relationship has _______ . They argue almost every day.

5. There are _______ in the classroom.

6. How _______ do you drink?

7. He has _______ to do over the weekend.

8. My father’s going on _______ next month.

9. I like _______ by Lady Gaga.

10. Don’t go to that part of the city at night – there’s _______ .