The ice was too thin for them ______. [ ]A. to skate on it B. skating on it C. to skate on D. skatin
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题目简介
The ice was too thin for them ______. [ ]A. to skate on it B. skating on it C. to skate on D. skatin
题目详情
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B. skating on it
C. to skate on
D. skating on
答案