问题
单项选择题
She walked slowly away, and he waited until she was out of（）before going back into the house.
A.reach
B.sight
C.touch
D.mind
答案
参考答案：B
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She walked slowly away, and he waited until she was out of（）before going back into the house.
A.reach
B.sight
C.touch
D.mind
参考答案：B