is necessary for us to finish the work in two days. A. TheyB. ThisC. ItD. That

问题补充：

is necessary for us to finish the work in two days.

A. They

B. This

C. It

D. That

答案：

A. They

B. This

(答案→)C. It

D. That

解析：此题考查固定句型结构it is+形容词+for sb to do sth表示对某人来说做某事怎样。对我们来说在两天内完成工作是必须的。