Choose the correct answer to each of the following questions.
- _______ free this afternoon?
- No, I _______.
- What _______ ?
- I _______ my dentist.
A.Will you be/ will not/ have you done/ have seen
B.Have you been/ have not/ will you do/ will see
C.Are not/ am not/ do you do/ see
D.Are you/ am not/ are you doing/ am seeing

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