是用动名词还是动词不定式working(to work) out the math problem like this题目是Did you have difficulty in study?Yes,
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其实答句应根据问句来判断,问句中有短语have difficulty in doing something,答句其实省略了yes,(i have difficulty in )working
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供参考答案1:
其实答句应根据问句来判断,问句中有短语have difficulty in doing something,答句其实省略了yes,(i have difficulty in )working