Put the verbs in brackets into the proper form:
1. If it (be) convenient, let’s meet at nine o’clock. 2. It will be
impossible for me to finish my work if you (not stop) this chatter. 3.
If you (want) to have tea ready in time, put the kettle on. 4. If she (not
answer) the telephone, she would never have heard the good news. 5.
Tell him he must visit the Tower if he ever (go) to London. 6. My
friend (be able) to help us if he (be) here. 7. If it (rain), you (get) wet.
8. If you (want) me to help you, why didn’t you say so? 9. If you (go)
away, please, write to me. 10. I (knit) another sweater if I (have) more
wool.

1. If it (is) convenient, let’s meet at nine o’clock. 2. It will be impossible for me to finish my work if you (do not stop) this chatter. 3. If you (want) to have tea ready in time, put the kettle on. 4. If she (had not answered) the telephone, she would never have heard the good news. 5. Tell him he must visit the Tower if he ever (goes) to London. 6. My friend (would be able) to help us if he (were) here. 7. If it (rains), you (will get) wet. 8. If you (wanted) me to help you, why didn’t you say so? 9. If you (go) away, please, write to me. 10. I (would knit) another sweater if I (had) more wool.