10．I was spending my holidays at the time，so I have no idea how it       ．（　�。�
A．was happeningB．happenedC．happensD．has happened

分析 當(dāng)時(shí)我正在度假，所以我不知道它是怎么發(fā)生的．

解答 答案是B．考查時(shí)態(tài)，根據(jù)句意，事情發(fā)生的時(shí)候我正在度假，用的是過(guò)去進(jìn)行時(shí)，所以事情的發(fā)生是過(guò)去的時(shí)間，所以要用過(guò)去時(shí)，故答案選B．

點(diǎn)評(píng) 高考題目對(duì)時(shí)態(tài)的考查是重點(diǎn)，謂語(yǔ)動(dòng)詞要與時(shí)間狀語(yǔ)保持一致，時(shí)態(tài)與時(shí)間是密不可分的，各種時(shí)態(tài)卻要受到時(shí)間和語(yǔ)言環(huán)境的限制，根據(jù)題干提供的時(shí)間或者時(shí)間狀語(yǔ)體現(xiàn)的時(shí)間來(lái)判斷句子的時(shí)態(tài)是最直接的解題方法，扎實(shí)的語(yǔ)法功底加上準(zhǔn)確的理解至關(guān)重要．

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