问题描述：
-Can I help you to ____the washing up?
-Sit down,You don't ____ help.
A.make;use to B.ran;need C.do;have to D.tidy;must
-Sit down,You don't ____ help.
A.make;use to B.ran;need C.do;have to D.tidy;must
问题解答：
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