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【題目】According to the research, it takes 21 days to _______ a new good habit.

A.cultivateB.exchangeC.handleD.inform

【答案】A

【解析】

考查動詞。句意:根據研究,培養(yǎng)一個新的好習慣需要21天。A. cultivate培養(yǎng);B. exchange交換;C. handle處理;D. inform通告,告知。根據a new good habit可知,一個新的好習慣不能說“交換、處理、告知”,應該說“培養(yǎng)”一個好習慣。故選A。

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