She (read).......... a book when the phone (ring) ........ .
My son (find) ........ a coin while he (walk) .......... .
She (do) ........ her hair when the postman (come) .......... .
When they (arrive) ....... we (wait) ......... for the bus.
When i (see) ...... him, he (eat) ......... the cakes.