The mother said she would______ her son washing the dishes if he could finish his assignme
公共英语
已帮助 人
The mother said she would______ her son washing the dishes if he could finish his assignment before supper.
A．let down
B．let alone
C．let off
D．let out
请帮忙给出正确答案和分析，谢谢！
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正确答案：C
解析：题意是：母亲说如果她的儿子能在晚饭前完成作业，她就______他洗碗。[C]letoff“免除(任务、责任等)”，符合题意。[A]letdown“放下，放低”，[B]letalone“不管，不干涉”，[D]letout“放出”都与题意不符。