Conditional Clauses

I would have read the letter if I ____________________ (know) it was from you.

If Tony doesn’t help in the garden I ____________________ (not finish) my work in time.

If you ____________________ (not tell ) me about Maxwell’s birthday I would forget it.

We _________________________ (catch) the train earlier if Mary had found her purse.

If Susan ____________________ (learn) the poem she would have known the answer.

If it _____________ (be) too hot we will stop and get a cold drink.

If it ____________ (not rain) today I would stay it home.

If the Professor spoke clearly we ________________(understand) him better.

If you go on talking like that we __________ (throw) you out.

If Sasha __________ (go) home now he would meet his own brother.