11._______ for the free ticket， I would not have gone to see film so often.
A. If it is not
B. Were it not
C. Had it not been
D. If they were not
12.Nobody but you _______ what he said.
A. agrees with
B. agrees out
C. agree with
D. agree to
13.—David has made great progress recently.
—_______， and _______.
A. So he has;so you have
B. So he has;so have you
C. So he has;so do you
D. So has he;so you have
14.The engineer ______ my father works is about 50 years old.
A. to whom
B. on whom
C. with which
D. with whom
15._______ is a fact that English is being accepted as an international language.
A. There
B. This
C. That
D. It