esercizi first conditional 11 - tutto inglese - Imparare l'inglese gratis on line

If Ann (mow) the grass, her father (give) her some money.
If my aunt (have) more time, she (knit) another sweater.
If John (find) your passport, he (phone) you at once.
MarK and Peter (play) tennis tomorrow unless it (rains).
If we (arrive) early, we (meet) at home.
What (happen) if the parachute (open) ?
If she (put) on the kettle, I (make) the tea.
Unless you (drive) more carefully, you (have) an accident.
If he (find) your keys, he (call) you.
I (think) it possible, unless I (see) it.