Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of el

题目简介

Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of el

题目详情

Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of electricity, water and food, etc...
A.referringB.referred toC.referring toD.were referred
题型:单选题难度:偏易来源:不详

答案

B
考察非谓语动词。句意:在讲座上被史密斯先生涉及到的一些问题带我们学校非常普遍……,过去分词作定语表示被动的,发生过的动作,problem是涉及的对象,故选B。

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