—I don’t know why Tom was absent from yesterday’s meeting.—He must have been sick, _______?
“Would you like a cup of coffee?” “____”
The students who do best in the examinations are not always __ with the best brains.
Are they ___ people?
Oh! I ___ you ___ in Beijing.How long have you been here?
The two prisoners who had fled the prison were looking for some rich familiers ___.