________ was known to them that the boss had broken his promise ________ he wou

题型：不详难度：来源：

________ was known to them that the boss had broken his promise ________ he would give them a rise.

A．What; what	B．It; which
C．It; that	D．As; that

答案

C

解析

C　句意：他们都知道老板已经违背了将给他们涨工资的诺言。第一空处，It作形式主语，指代真正的主语“that the boss had broken his promise...”。promise之后是其同位语从句，从句句意完整且不缺成分，所以填that。