написать правильно.When my sister does not go to the south, we (to go) to Moscow. If my friend (to be ) at

Question

Английский язык: написать правильно.When my sister does not go to the south, we (to go) to Moscow. If my friend (to be ) at home, he will tell us what to do. We shall watch TV, when my sister (to come) home. If you (to ring ) me up, I shall tell you a secret