问题
选择题
When Mr Wang was young, he________ in the river.
A．uses to swim
B．used to swim
C．used to swimming
D．used swim
答案
答案：B
题目分析：句意：当王先生年轻的时候，他经常在河里游泳。“过去常常做某事”是used to do。故选B。
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When Mr Wang was young, he________ in the river.
A．uses to swim
B．used to swim
C．used to swimming
D．used swim
答案：B
题目分析：句意：当王先生年轻的时候，他经常在河里游泳。“过去常常做某事”是used to do。故选B。