Do you know the big boy ________ helped to catch the thief yesterday — Yes, Li Ming, the chairperson of the Students’ Union .

No man is born _____. We all need to learn to become _____.

Victor apologized for_____to inform me of the change in the plan. [ ]

How long have you been here?—Only about three minutesXiaoming and Mary _____here with me.[ ]

I don’t know________.—Because he has to look after his mother.