Ответ:Task 1
1. No, they aren't (they are yellow)
2. yes, they are
3. yes, there are
4. no, there aren't (there are 4 seasons?
5. no, there aren't (there are 3 month)
6. yes, we do
7. no, it isn't (it is in summer)
Task 2
1. A cat can run. A cat can't sing.
2. A girl can sing and dance. A girl can't run
3. A monkey can run. A monkey can't sing and dance