2. 外语
  3. The old man is used to______early in the morning.

The old man is used to______early in the morning.

admin2014-02-11  58
问题 The old man is used to______early in the morning.
选项 A、exercise
B、exercising
C、exercised
D、exercises
答案B
解析 be used to doing，表示“习惯于做……”，句中的to是介词，因此后面接动名词。
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