1. I couldn’t resist ……laughing………..(laugh) at the way he answered my question.

2. She told me that her family …………LIVED…….(live) in that town long.

3. He refused…………JOINING…………(join) us on the trip to the mountains.

4. By the time next week, they ………………WILL HAVE SAT…….(sit) in the train on their way to London.

5. It is raining. We can’t do anything until it …………STOPS……..…..(stop).

6. If he doesn’t start at once, he ……………WILL BE…….….(be) late for the train.

7. All the tickets ………WILL HAVE BEEN SOLD…………..…(sell) out by the time we arriced at the theater.

8. The experiment …………WAS BEING MADE………...(make) when the lights went out.

9. It was one of the happiest evenings I ……………HAVE SPENT…..……..(spend).

10. The radio ………HAS BEEN PLAYING…………………….(play ) since 7 a.m. I wish someone would turn off it.