1) Don't tell me that you are busy today.
2) He often says that he is very busy.
3) It's a lovely toy, isn't it?
4) Mr Black is not old, is he?
5) She doesn't like the colour.
6) The boys don't like this game.
7) There is a book in the bag.
8) There are two books in the bag.
9) Tom was in London last year, wasn't he?
10) They are at the zoo, aren't they?