We forbid ______ in the lecture hall, so you are forbidden _____ here
Wangfujing Street is one of __ streets in Beijing .Let’s go there for a shopping trip.
There are so many kinds of radios in the shop. I can’tdecide .
Zhejiang University is very famous in theworld.— Yes, _____ the students in ZhejiangUniversity are from foreign countries.
If you feel tired and sick of fat food, that is _______ you have to go to the hospital for a medical examination.