13．He ______________ two tickets for us before he arrived at the entrance of the cinema．（　�。�
A．had reservedB．has reserved
C．was reservingD．has been reserving

分析 在他到達(dá)電影院門口之前，他已經(jīng)給我們訂了兩張票．

解答 答案：A 考查過去完成時(shí)．發(fā)生在過去動(dòng)作之前的動(dòng)作，簡稱"過去的過去"，應(yīng)該使用過去完成時(shí)，根據(jù)過去式arrived可知，reserve發(fā)生在它之前的動(dòng)作，使用過去完成時(shí)，故選A．

點(diǎn)評 解答此類問題要了解各種時(shí)態(tài)的基本含義，并區(qū)別各種時(shí)態(tài)之間的差異，了解某些時(shí)態(tài)的特殊用法，然后結(jié)合語境選擇正確答案．

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