решить:
Zero
1. If you …….. (freeze) water, it …. (turn) into ice.
2. If air ……. (be) hot, it ……. (rise).
3. If you ………. (pick) a fish out of water, it ……. (die)

First
4. If it ……. (snow), the children ……. (play) snowballs.
5. If you ……. (want) to learn a foreign language, you …… (have) to work hard.
6. If he …… (come) earlier, he …… (prepare) supper.

Second
7. If I …… (be) rich, I …… (travel) around the world.
8. If I …… (go) to New York, I …… (visit) museums there.
9. If I …… (have) enough money, I ….… (buy) a computer.​