We found impossible to finish the work on time.A. thatB. oneC. itD. this

问题补充：

We found impossible to finish the work on time.

A. that

B. one

C. it

D. this

答案：

A. that

B. one

(答案→)C. it

D. this

解析：考查it作为形式宾语。在英语中只有it可以作为形式主语和形式宾语。在本句中it是形式宾语，真正的宾语是后面的不定式to finish the work on time.故C正确。