Ответ:

1. Tom did not see (to see) her as he was reading (to read) when she came (to come) into the kitchen.

2. When Rupert was in Moscow he visited (to visit) the places where he had played (to play) as a boy.

3. The letter arrived (to arrive) 10 minutes after you had left (to leave) the house.

4. It was raining (to rain) hard last night when Mary left (to leave) the office.

5. When I called (to call) for my friend, her brother told (to tell) me that she had left (to leave) half an hour before.

6. I shouted (to shout) to her to stop, but she was running (to run) too fast and did not hear (to hear).

7. Large crowds were waiting (to wait) at the station when the huge delegation arrived (to arrive).