1. In 2002 John visited Moscow with a group of friends.
2. This month we have prepared for our exams.
3. Natasha is at the cinema waiting for Dennis. She has been waiting for 10 minutes.
4. Marie only has half an hour for lunch so she usually has a sandwich.
5. David is a good friend of mine. I have known him since I was six years old.
6. At the moment I need to concentrate. I am doing a grammar exercise.
7. Tom is writing an important report. He has written four pages already.
8. Once a month Caroline goes to the hairdresser's to have her hair cut.
9. Last year Peter travelled all over Australia.
10. Next Saturday, Peter is taking Mary to the theatre.
Are the continents very large? Yes, they are.