Question

16. He was absent again, which              to carry on with the work. (make)

他又沒來，這使得我們要繼續(xù)這項(xiàng)工作有困難。

Answer 1

 16. made it difficult for us考查it作形式賓語的用法。本題中it代替后面的不定式"to carry on with the work"作形式賓語，difficult作賓語補(bǔ)足語，構(gòu)成復(fù)合賓語的結(jié)構(gòu)。類似這樣的常用動(dòng)詞還有feel / think / find...,接it作形式賓語，代替后面的不定式或從句。