Question

【题目】—Do you know ?

—Sure. In July last year.

A.how waste sorting(分类) in Shanghai start

B.what did waste sorting in Shanghai start

C.when waste sorting in Shanghai started

Answer 1

【答案】C

【解析】

句意：——你知道上海什么时候开始垃圾分类吗？——当然。去年7月。

考查宾语从句。根据宾语从句要用陈述语序，故排除B；根据答语Sure. In July last year.可知，要用引导词when，故排除B，故选C。