Put the verbs into the correct form (past perfect or the

Put the verbs into the correct form (past perfect or the simple past)

The storm (destroy) the house that they had built .
The children (clean) the blackboard they had used to do the mathematics exercise.
When she went out to play, she (do / already) her homework.
She (eat) all of the food that we had made .
He took off the jacket he (put on) before.