The parents rushed to the hospitalthey heard that their son was injuredA. at the momentB.

问题补充：

The parents rushed to the hospitalthey heard that their son was injured．

A. at the moment

B. for the moment

C. the moment

D. in the moment

答案：

A. at the moment

B. for the moment

(答案→)C. the moment

D. in the moment

解析：考查连词。两个句子需用连词连接，四个选项只有the moment是连词，意为“一。。。。。。就”，而其他三个都只做时间状语。所以选C。