High school students should be given enough sleeping time , _______ they are busy with their study .
—Hi, what did our monitor say just now? —Every boy and every girl as well as teachers who are to visit Water Cubeasked to be at the school gate before 6∶30 in the morning.
When I entered the room, I found Mary ______ at the desk ______ her homework.
Yesterday we visited a modern hospital, around _________ some fruit shops.
— You’re at ______ liberty to say whatever you like. — I think you’re taking ______ risk by investing everything in one company.
_________ your composition carefully, some spelling mistakes can be avoided.