Lisa would find the milk if she (a)   (to look) in the fridge

The zookeeper would have punished her with a fine if she (a)   (to feed) the animals.

If you spoke louder, your classmates (a)   (to understand) you.

Dan (a)   (to arrive) safe if he drove slowly.

You (a)   (to have) no trouble at school if you had done your homework.

If you (a)   (to swim) in this lake, you'll shiver from cold.

The door will unlock if you (a)   (to press) the green button.

If Mel (a)   (to ask) her teacher, he'd have answered her questions.

I (a)   (to call) the office if I was/were you.