The old man is used to ______ early in the morning.A、exerciseB、exercisingC、exe

游客2024-01-19 47

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 sth：习惯于做某事。其中的to是介词，因此后面接动名词。

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