3.He can hardly stay awake because he is so tired.______?( 。
A.does heB.isn't heC.can't heD.can he

分析 他很難保持清醒因?yàn)樗侨绱说膭诶郏遣皇牵?/p>

解答 句意:他很難保持清醒因?yàn)樗侨绱说膭诶郏遣皇牵壳拔膆ardly表示否定含義,后附加部分用肯定.前有情態(tài)動(dòng)詞can,后附加疑問句用can he.故選:D

點(diǎn)評(píng) 反意疑問句一般遵循前肯定則后否定,前否定則后肯定的原則,并且疑問部分時(shí)態(tài),人稱要與前文保持一致.

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