Use Third Conditional. 1. If Tom (listen) to the weather- forecast, he (know) it was going to rain.
2. If she (prepare) for the exam, she (pass) it.
3. If we (attend) all the lessons, we (get) excellent marks.
4. If they __ (listen) to my advice, they __ (save) a lot more money.
5. I __ (write) you a letter if I __ (have) your address.