1. At this time yesterday I (write) a test.

2. Yesterday Mr Johnson (receive) a letter. In the letter he (ask) to come to the police station. He (wonder) why he (want) by the police.

3. Oranges (not / grow) in England.

4. Last month Mr Clark (rewrite) the end of the book. The last page (rewrite) five times.

5. If you (help) him, he (finish) his work in time.

6. If I (be) free tomorrow, I (go) to the park.

7. If I (see) Tom again, I (tell) him everything.

8. Tea (bring) to England many centuries ago.

9. When he (come) home, he (telephone) you.

10. If the weather (be) bad tomorrow, we (play) chess.