Удалите скобки, чтобы закончить предложения. Используйте время Past Perfect.
Пример: It was a firm that I (never, hear of). - It was a firm that I had never heard of.
1. Mother saw that James (not to wash) his hands.
2. I knew that my friend (not to come) yet.
3. The teacher understood that Lena (not to write) exercises.