Ответ:

We had done the lessons before father came.

I had had supper by nine.

He had not learnt the poem by the evening.

They had made a lire before the sunset.

The duty had cleaned the board before the teacher came.

I had not translated the article by the morning.

Had the children fell asleep by ten?

Why had not he sent the letter by holiday?

Who had finished work by six in the evening?

We had woken up by the sunrise.

I had baked the cake before guests came.

Had the game started by four?

By three o'clock I had looked through all the documents.

Объяснение: вот