3．I was surprised to find my bag empty after getting off the bus．Someone______everything!（　　）
A．had been stealingB．had stolen
C．have stolenD．have been stealing

分析 下車后，我很驚訝地發(fā)現(xiàn)我的包空了．有人把里面所有東西都偷了．

解答 答案：B
該題考查過去完成時用法，由第一句"下車后，我很驚訝地發(fā)現(xiàn)我的包空了"可知，該句謂語was surprised使用的是一般過去時，而第二句謂語動作steal應(yīng)該發(fā)生在was surprised之前，所以steal實際是一個表示"過去之過去"的動作，根據(jù)英語語法，表示"過去之過去"應(yīng)用過去完成時，故選B．

點評 考查時態(tài)時，要注意句中表示時間的成分對時態(tài)的提示，如果沒有明確的時間提示，則可以通過句中邏輯關(guān)系來確定時態(tài)．

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