Question

Помогите, срочно!
1. It's very hot here. He forgot ... the window. 1) opening 2)to open 3) opened
2. The house was a disaster. They ... a terrible mess. 1)were doing 2) were making
3. The train ... at 5 o'clock tomorrow. 1)arrives 2)will arrive 3) is arriving
4. I ... my homework by the time you come to see me tomorrow. 1)will have done 2) will do 3) will be going​

Answer 1

Ответ:

1) to open

2)were doing

3)will arrive

4)will have done