Air pollution, together with littering, many problems in our large industrial cities toda

发布时间：2020-08-16 17:46:25

Air pollution, together with littering,      many problems in our large industrial cities today.
A. causes
B. cause
C. caused
D. causing

网友回答

(答案→)A. causes
B. cause
C. caused
D. causing
解析：
这题考查主谓一致的用法：主语被together with连接时，谓语应该和前面的主语一致，选A。
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