Вроде так
1 My older brother came back from school and we went for a walk
2 I close the window? The room is too cold
3 What are you going to do on Sunday?
4 What were you doing when I called you?
5 It often rains in autumn
6 John is still working in the garden
7 If the father would buy a new car, we will the sea
8 That tomorrow will not be playing tennis, because yesterday he broke his arm during exercise
9 Whet I passed by, I saw the light in your window
10 I finished writing an essay and called a friend