I don't know ________. A．how can I do it...

I don't know ________.

A．how can I do it B．how to do it

C．what can I do D．how to do

B 【解析】试题分析：句意：我不知道我能做什么。how can I do it作为动词know的宾语从句，应用陈述语序how I can do it，what can I do应为what I can do。故排除AC两项。do是及物动词，后面需接宾语it，故选B。考点：考查宾语从句的用法。

考点分析：

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