题目内容
— Tom, why not stop _________ a rest?
— Oh, no, mum. It’s so interesting that I can’t stop _________ the kite.
A. having; to fly B. to have; flying
C. to have; to fly D. having; flying
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We’re here to have fun, to learn, to work together and to make difference.
A.a; a | B.a; / | C./; a | D./; / |