10．---Why do you look so worried？
---My computer broke down and my essay _____ unfinished since．（　�。�
A．has been leftB．was leftC．had been leftD．has left

分析 --"你為什么看起來(lái)這么焦慮？"
--"我的電腦壞了，我的散文還沒有寫完呢．"

解答 答案：A．
根據(jù)句末的since可知，此處表示過去的某一動(dòng)作或行為一直持續(xù)到現(xiàn)在，所以用現(xiàn)在完成時(shí)，可排除B和C；又因?yàn)?essay"與"leave unfinished"是被動(dòng)關(guān)系，故用現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)，可排除D；故選A．

點(diǎn)評(píng) 對(duì)于時(shí)態(tài)的考查題要明白句子發(fā)生的具體時(shí)間以及不同時(shí)態(tài)的用法，然后分清主被動(dòng)關(guān)系即可

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