When my mother entered the room I had just finished my homework.
He hadn't noticed that his sister was behind him.
"Had it been only a dream?" she was asking herself when she woke up.
We hadn't started eating when he came in.
I supposed that he hadn't read the book.
Before they arrived home their mother had heard about their failure at the exam.
"If you had learned harder you would have passed the exam!"
I would have talked to her if I had seen her.
