One of our rules is that every student ________ wear school uniform while at school.(2012·辽宁)

--- Can you make a kite for me?--- Sorry, I _____.

 She is a quiet girl at school，but sometimes she _____ be very naughty.

—You look so tired. —Yes. The loud noise upstairs stopped me        the whole night.

Being examined twice a year, whether it is a car or a bus or a truck, it is the rule that every driver____ obey in this city.