It was not until I began to work that ______ how much time I had wasted.A did I realize B didn’t I realize C I realize D I realized
Mr Black, who is a ______, is in love with Miss Smith, who is a ______.
---The floor is dirty. Can anyone clean it? ---______I do it all the time.
It is said that Mr. White will ________ Mr. Green in this school.
When he went out of his office, he found his car __________.
In copying this paper, be careful not to leave _______ any words.