一、选择填空:
( )1.Please call me back if you_______ free tomorrow.
A. are B. will be C. is D. is going to be
( )2. My father has to stop _____ after_____ for such a long time.
A. smoking, reads B. smoking, reading
C. to smoke, reading D. smoked, to read
( )3. She isn’t_____ enough to pass the exam_______.
