One of our rules is that every student wear school uniform while at school.
| A．shall | B．might | C．will | D．could |
If itthe climate, I would stay here much longer．
| A．is not for | B．had not been for | C．were not for | D．would not be for |
Sinking in the cheers of people, David walked off the stage, tears droppinghe could stop them．
| A．after | B．when | C．until | D．before |
Days of snowstorms have left the cityunder thick layers of ice and some 50,000 homes without power．
| A．to be trapped | B．trapped | C．having trapped | D．being trapped |
Heavy smog blankets Beijing．,city authorities start using its new smog warning system．
| A．In turn | B．In time | C．In response | D．In return |
Thanks todrama currently on air, Man From the Stars, South Korean TV dramas haveattractedwider audience．
| A．the; the | B．a；a | C．a; the | D．a; / |