備戰2019屆高考英語（通用版）一輪復習專題14 it的用法
8.（XX年山東卷，24）_____________ worries me the way he keeps changing his mind.
a.this b.that c.what d.it
【答案】d
【解析】考查it作形式主語，句中it充當形式主語，真正的主語是the way，其后又有定語從句he keeps changing his mind修飾。
9.（XX年陜西卷，16） —there is still a copy of the book in the library. wall you go and bottow ?
—no, i’d rather buy in the bookstore.
a.it; one b.one; one c. one; it d.it; it
10..（ 年天津卷，1） he didn’t make ________ clear when and where the meeting would be held. .
a. this b. that c. it d. these
【答案】c
【解析】考查it作形式主語，it代替when and where the meeting would be held其他選項均不可以充當形式賓語。