Exercise 5. Use the Past Simple of the Past Perfect Progressive Tense instead of the infinitive in brackets.

Example: He looked at her. He knew she had been crying.

1. He (to look) at her. He (to know) she (to cry).

2. She (to tell) him about her plan, which she (to think of) all morning.

3. Holly (to close) the book which she (to read) and (to look up) at her mother.

4. Through the window he (to see) the room where they (to sit) the previous night.

5. Paul (to think) for some time before he (to dare) to answer.

6. They (to sit down) to dinner which mother (to cook) all morning.

7. How long Tony (to read) when this terrible accident (to happen) ?

8. When I (to come) everyone (to stop) talking.

9. How long this man (to stand) there and (to watch) you before you (to notice) him ?

Exercise 6. Use the Future Perfect Progressive Tense or the Present Simple Tenses instead of the infinitives in brackets.

Example: He had been writing this letter for 3 hours when you came.

1. He (to write) a letter for 3 hours when you (to come).

2. He (to learn) French for 6 years already when he (to enter) this college.

3. Ann (to study) English for 10 months by the time he (to go) back to Syria in October.

4. By the time we (to get) to New Zealand, we (to fly) for 13 hours.

5. I (to sleep) for 2 hours by the time he (to get) home.

6. They (to ask) me silly questions for 2 hours. Why they (not to stop)?

7. The painter (to work) on this landscape for almost a year by Christmas.

8. By July 1 she (to live) here for 5 years.

9. They (to try) to solve this problem for 3 years by 2013.

10. We (to have) dinner for half an hour tomorrow when he (to call) for us.