作业帮 > 英语 > 作业

Some problems ___ in the lecture by Mr.Smith are very popula

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/25 17:26:20
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.referring B.referred to C.referring to D.were referred
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。