Ответ:
1. (b) - There are a lot of Russian people on holiday at the moment.
2. (c) We only have a little time between the third and fourth lesson - not enough to have lunch.
3. (b) I've got too much homework to do. I have to write two essays and learn two new grammar rules.
4. (d) Sam hasn't got enough money to go to the cinema tonight.
5. (a) My family lives in a quiet part of the city, so there isn't much to do in the evening.
6. (d) At 7 pm, there are too many cars on Altufyego Avenue. It's the rush hour.
7. (a) If you go to work at 6 am, there is not much traffic on the road.
8. (c) We don't have enough students in this class to make a volleyball team.
9. (b) How much clothes do you usually take when you go on holiday?