—Have you seen a red pen on the desk?—Sorry. There is ________ pen here.
It was my fault. I ________you about the meeting earlier.
It was in 2005 when I was here on business ________I found Chengdu so comfortable for people to live in.
The chairman asked me to ________the report, because he didn't want to speak for too long at this meeting.
___ she couldn’t understand was ___fewer and fewer students showed interest in her lessons.
—-I can't stand you! I'm leaving.—________. See if I care.