Ответ:
1. You closed the door before leaving the house?
2. I can’t go out because I not finished my work yet.
3. I always buy lottery tickets but I never won anything.
4. Tom and Ann had a long conversation. I wonder what they talked about.
5. That tree makes the house very dark. – Very well, I cut it down.
6. When he began to teach at the Institute, students in his group already studied English for two years.
7. I was very ill since last month. I went to the doctor at 2 o’clock. And if everything is all right I let you know.
Объяснение:
Peter Atkinson is going to swim in river.
The whole family is going to cook food on the boat.
Sally Atkinson is going to relax on the boat.
Celia is going to admire the wonderful landscapes.
Oliver and Paul are going to pilot the boat.
И так далее - где один человек (он, она) - там is going
Где двое или несколько - там are going
Toy это существительное, у него не ни настоящего не прошедшего времени)
1came to live
2.has gone
3.am learning
4.haven't finished
5 has just left
6.haven't been
7have never eaten
8 . forgotten
Ex.4.8.
1.lived......have moved
2.have you seen.....saw
3.went.......have not been
4.have met.......were
5.have tried. ....left