Open the brackets using Conditional Type II.
If she (phone) me yesterday, we (go) to the cinema.
I (be) happy if it (be) summer.
If I (be) you, I (watch) the film next week.
She (forgive) him if he (apologize).
They (buy) the house if she (agree) to sell it.
If we (be) friends, he (invite) me to his birthday party.
If I (have) her address, I (give) it to you.
I (lend) you the money if I (have) it.
I (help) you if you (ask) me.
I (ask) him to lend me the money if I (see) him.