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11. I like getting up very early in summer. The morning air is so good ___.
A.to be breathed B.to breathe C.breathing D.being breathed
12. ___ the right kind of training, these teenage soccer players may one day grow into other international stars.
A.Giving B.Having given C.To give D.Given
13. Sorry, I’m busy now. If I ___ time, I would certainly go for an outing with you
A.have had B.had had C.had D.have.
14. Jack a great talker. It’s high time that he __ something instead of just talking.
A.will do B.has done C.do D.did