i found ____ difficult to remember so many ENglish words in such a short time.A one B it C them D that

来源:学生作业学帮网 编辑:学帮网 时间:2024/07/06 10:29:36

i found ____ difficult to remember so many ENglish words in such a short time.
A one B it C them D that

B.it 用来代替不定式做形式宾语.