John found ____ difficult to pass the entrance examination空格应该填什么

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/09 03:05:34

John found ____ difficult to pass the entrance examination空格应该填什么

it 指示代词 it 指代后面的不定式 to pass the entrance examination

it
find it+adj.to do sth.固定句型,发现做某事是~

it
形式主语