Кто знает,помогитеее!!!Раскройте скобки,поставив глагол в подходящую форму:If you (trust) me, I

Кто знает,помогитеее!!!Раскройте скобки,поставив глагол в подходящую форму:
If you (trust) me, I (can lead) you safely through.
I could give you his address if I (know) it.
The journey takes about 3 hours by bus.
You (get) there much sooner if you (go) by train.
The dinner (not to be spoiled) if you (not to forget) the dish in the oven.
The house agents (show) us nice flats if they find.
They (go) to the beach if it were warmer.
She (know) how to behave if she (be) a born lady.
If he knew you were away, he (not come).
If the poem were not so long, I (learn) it by heart.