Question

【题目】【2012江苏泰州】 —Why are you late, Jim?

—Because there a lot of traffic when I came here.

A. is B. are C. was D. were

Answer 1

【答案】C

【解析】

试题分析：由后面的“when I came here.”可以确定主句用一般过去时态；there be句子的主语是traffic为不可数名词，谓语动词用单数形式，故本题答案为C。