6.A.Yes,I did.           B.No, I don’t.                 C.Yes I have.

7.A.Yes, she is.          B.No, she doesn’t.             C.Yes ,she did.

8.A.A scarf.             B.No, it isn’t.                 C.Let’s go to a movie.

9.A.No, I am not.        B.Yes, I have.                 C.No, I don’t.

10.Sorry, we’ll go and play in the park.  B.OK, I will do it at once.  C.No, I wouldn’t.