Students be careful when they do physical experiments in the lab.
A.can B.must C.need D.ought to
Do the here get the same pay as their male colleagues?
A.woman doctors B.woman doctor C.women doctors D.women doctor
Because of the heavy haze (雾霾), they had to stay at the airport for two hours.
A.other B.others C.another D.the other
Jane is a top student in our class. She achieves C in her subjects.
A.usually B.always C.sometimes D.never
I can’t connect my computer to the Internet. There must be _______wrong with it.
A.something B.everything
C.anything D.nothing
China International Import Expo (进博会) will take place in Shanghai November 5th to November 10th.
A.in B.at C.to D.from
