问题补充:
单选题Icannothelp___theboxforyou,asIamtootired.A.carryingB.carryC.with carryingD.being carried
答案:
B解析主句意思是: 我不能帮忙为你抬箱子,如填A为can not help doing的句型, help..with句型一般不加动名词表动作.D项使句子意思不通.
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