Использовать Past Simple и Past Perfect.1)When we (to arrive) ... at the theatre, the performance (to start) ... already. 2)I (to do) ... the dishes before we (to go) ... for a walk.3) Nick (to play) ... tennis yesterday, he (to play) ... never it before. 4) Kate (to make) ... a cake when her parents (to come) ... home.Условные предложения. Раскрыть скобки.1)If my friend (to come) .... to see me tomorrow, I (to be) ... very glad. 2)If my mother (to buy) ... a cake, we (to have) ... a very nice tea party. 3)If we (to receive) ... a telegram from him last week, we (not no worry) ...

1 arrived, had already started
2 had done, went
3 played, had played
4 had made, came
1) comes, shall be
2) buys, shall have
3) had received, shouldnt have worried