【題目】— I have difficulty ________ the problem by myself. Could you help me?

— It’s my pleasure.

A.with working outB.working outC.to work out

【答案】B

【解析】

句意：——我自己做這道題有困難。你能幫我嗎？——這是我的榮幸。

考查動詞短語辨析。work out想出/得到（解決方法）。have difficultly/problem doing做某事有困難，固定結(jié)構(gòu)；根據(jù)句意結(jié)構(gòu)，可知選B。

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