_____ how to express the idea in English, he turned to the dictionary.
- A.
Does not know
- B.
Not knowing
- C.
Knowing not
- D.
Not to know
B
考查非謂語(yǔ)動(dòng)詞用法。He與know構(gòu)成主動(dòng)關(guān)系，所以使用現(xiàn)在分詞的形式，其否定形式not要放在現(xiàn)在分詞的前面。句意：不知道如何用英語(yǔ)表達(dá)自己的觀(guān)點(diǎn)，他查了字典。
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