It’s a common scene now in Chile that families cry helplessly over is left of their homes

问题补充：

It’s a common scene now in Chile that families cry helplessly over is left of their homes.

A. what

B. which

C. there

D. it

答案：

(答案→)A. what

B. which

C. there

D. it

解析：考查名词性从句。cry over...“为......而哭泣”；over后缺少宾语，宾语从句缺少主语。故用what引导宾语从句。故选A。