1)Mike(already/to wash) his hands.
2)Where(to be) Sue? She (to cook) dinner.
3)Nina (to woke) up before her mum came.
4)Children (to write) the test for an hour yesterday.
5)The teacher (to explain) this rule next lesson.
6)My sister (to buy) the present for Tony by Friday.
7)Bob (to watch) TV when his friend called him.