--Why are your eyes so red? You _______ have slept well last night.---Yeah, I stayed up late writing a report.
It is that he hasn’t .
Don’t worry! Philip is quite used to in such busy streets as this.
The teacher was angry about his being late for class, but he behaved ______ nothing had happened.
Candidates ______ remain in their seats until all the papers have been collected.
—Excuse me, Dad, but I’m going to the club to meet my friends in the football team. —OK. ______