Ответы
1. I’m trying to study. I have been trying to study for the last hour, but something always seems to interrupt me. I think I’d better go to the library.
2. The children are playing basketball right now. They have been playing for almost two hours. They must be getting tired.
3. The telephone has rung four times in the last hour, and each time it has been for my roommate.
4. The telephone has been ringing for almost a minute. Why doesn’t someone answer it?
5. It has been raining all day. I wonder when it will stop.
6. We have had three accidents so far this week. I wonder how many more we will have if you keep using the tools carelessly.
7. We have been living here since last June.
8. My little son is dirty from head to foot because he has been playing in the mud.