1. раскройтескобки, . 1) if it rains, we (to stay) at home. 2) if you (not to try) harder, you will fail. 3) if we are living soon, i (to take) my coat. 4) eat less and you (to get) slim. 5) if he (to travel) by boat, he will be sick. 6) mark will bring you a sweater if it (to get) cold. 7) you (to recover) if you have a rest. 8) i will send her a copy if (not to receive) this file. 9) you (to be) late unless you go now. 10) you can come if you (to behave) yourself.

1) If it rains, we will stay at home.
2) If you do not try harder, you will fail.
3) If we are living soon, I will take my coat.
4) Eat less and you will get slim.
5) If he travels by boat, he will be sick. 
6) Mark will bring you a sweater if it gets cold.
7) You will recover if you have a rest.
8) I will send her a copy if she does not receive this file.
9) You will be late unless you go now.
10) You can come if you behave yourself.