·         1. I didn't realize that Gary was in hospital. If I (know) ……………………… he was in hospital, I (go) ………………………………… to visit him.

·         2. Ken got to the station in time to catch his train. If he (miss) ………………………. it, he (be) ………………………………………. late for his interview.

3.A:

You look tired.

Well, if you (not wake) ……………………………… me up in the middle of the night, I (not be) …………........ tired.

4. Unfortunately, I didn't have my address book with me when I was in New York. If I(have)  ………………… your address, I (send) …………………………..……. you a postcard.

·         5. The accident was your fault. If you (drive) …………………….. more carefully, it (not happen) ……………………………

·          6. Last night Alex ruined his sweater when he washed it. If he (read) ………………………..the label, he (not wash) ………………………….. it in hot wate

7. The students (perform) ……………………….…… better if they (prepare) ……………………. more carefully, but they didn't.