1. If I (see) John tomorrow, I (tell) him the news about Mary. 2. Meg sleeps only 5 hours a day. If she (sleep) longer, her health (improve) fast.
3. If you (freeze) water it (turn) into ice. 4. If she (want) to talk to me, she (call). But she doesn't. 5. If Tom (need) help with his car tomorrow, my father (help) him. 6. We (have) a party outside if the day (be) fine. 7. I (understand) Mr Brown if he (speak) more slowly. But he doesn't. 8. If you (get) lost, the police always (help) to find the way. 9. If she (catch) the bus now, she (arrive) in time. 10. I (not need) an umbrella if it (not rain). But it is.