______ how to deal with the trouble of the computer, Martin had to ask his broth

游客2023-09-29 62

问题 ______ how to deal with the trouble of the computer, Martin had to ask his brother for help.

选项 A、Not know
B、Not known
C、Not to know
D、Not knowing

答案 D

解析本题考查现在分词。根据句子结构，该句前半部分应为非谓语结构，所以应首先排除A项。又因为该部分中动词know的逻辑主语是主句的主语Martin，两者为主谓关系，故排除B项。不定式用来表示目的或将来，现在分词可以用来表示原因或事实。根据句意，本句应表示原因，因此，答案为D项。

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