题目内容：

it ___sad that some people are deaf.
A is B will be C are D be 请具体说明理由.

优质解答

It ___sad that some people are deaf. 选择题A is B will be C are D be 请具体说明理由.谢谢答：A译：有些人是聋子,这件事情是很悲伤的.析：that-从句是真正的主语,it作主语,排除CD. it will be sa...