1.When the postman (to arrive), my father (to have) a shower.

1.When the postman (to arrive), my father (to have) a shower. 2.While my brother (to study), my grandma (to make) some muffins. 3.They (to play) tennis when it began to rain. 4.We (to go) to the movies last night. 5.The thieves (to come) into the house while the man (to sleep).