题目内容

----Did you see a child dressed in red pass by?
----Sorry, I _____ the poster on the board without noticing anyone.
A．have readB．had readC．am readingD．was reading
D

试题分析：句意：你看见一个穿着红色衣服的孩子从这经过了吗？对不起，我一直在看板子上的海报，没有注意任何人。表示刚刚正在做某事，用过去进行时态的形式，故选D
点评：动词的时态是学习英语过程中非常重要的知识。而很多的题目要通过上下文的判断得知。过去进行时表示动作在过去的某个点时间正在进行，本题不难，平时加强记忆，理解即可。
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