A-A+
______ was known to them all that William had
问题详情
______ was known to them all that William had broken his promise ______ he would give each of them a gift.
A) As; Which B) What; that C) It; that D) it; which
参考答案
C第一空填it，为形式主语；第二空填that，用以引导一个同位语从句，修饰promise。
