Exercise 1: Use the correct tense of the verbs in brackets.
1.If he comes here, I (tell)................you.
2.If you go away, please (write ).............to me.
3.What you (do)...............if she refuses your invitation?
4.What would happen if he (come)..............late?
5.I wouldn’t do that if I (be)...........you.
6.Unless she (come).................., we will go without her.
7.If we had known your address, we ( write).......................you a letter.
8.If you (see) ................a UFO, what would you do?
9.He might get rid of his cough if he (not smoke)....................so much.
10.If I saw a tiger walking across the park, I (climb) ........................the tree.
1.I'll tell
2.write
3.What will you do
4.came
5 .I were you.
6. comes
7.will write
8.saw
9.doesn't smoke
10. wil climb
