题目

He must have sensed that I ________ (look) at him. He suddenly glanced at me and said quietly, “Why are you staring at me like that？” 答案：was looking　句意：他一定是觉察到了我正在看着他。他突然瞥了我一眼，轻声说：“你为什么那样盯着我看？”根据句意及glanced at和said可知，句子应用过去进行时。

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