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8．The task is so hard for me．I don't know _______________．（　　）

A．

what I can do

B．

how to do

C．

what to do

D．

both A and C

分析任務對我來說很難，我不知道我能做什么．（不知道做什么．）

解答答案：D．know后加賓語，若是賓語從句，疑問詞+陳述句語序，主句是一般現在時，從句時態不受限制，故A正確，表示我不知道我能做什么，know后可以用疑問詞+動詞不定式，故what to do表示不知道做什么，B選項需換成how to do it，故選D．

點評 How to do--------------怎么做，關于方式 do后面必須加賓語，常用it，how to do it
What to do------------做什么，關于內容 what就是do的賓語，do后面不加名（代）詞

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