【題目】We’d better follow the seven-step hand-washing method __________ healthy.

A.to keepB.keepC.keepingD.keeps

【答案】A

【解析】

句意:為了保持健康,我們最好遵循七步洗手法。

考查非謂語動(dòng)詞。to keep動(dòng)詞不定式;keep動(dòng)詞原形;keeping動(dòng)名詞;keeps動(dòng)詞三單。分析句子可知,此處表示目的,用于句中作目的狀語,所以使用動(dòng)詞不定式形式。故選A

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