——What’s your problem? ——I have lost sight of my morn and dad, but just I saw th

游客2024-07-26  11

问题 ——What’s your problem? ——I have lost sight of my morn and dad, but just I saw them ______ in front of me.

选项 A、were walking
B、to have walker
C、walk
D、walking

答案 D

解析 感官动词see,hear等后面可以跟两种宾语补足语的形式,即see(hear)+do/do ing sth.前者表示看到或听到某事的全过程,而后者表示看到或听到某人正在做某事。本 题表示看到正在进行的动作,所以用动词现在分词形式。
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