问题补充:
sounded unimaginable to everyone present was she had managed to finish the task in a week.
A. What; how
B. It; how
C. It; that
D. What; that
答案:
A. What; how
B. It; how
C. It; that
(答案→)D. What; that
解析:考查主语从句和表语从句:第一空填what引导主语从句,what在主语从句中做主语,第二空填that,连接表语从句,表语从句是完整的,用that连接,不做成分,也不省略。句意:对我们所有的人来说难以想象的是她一个星期能设法完成任务。选D。