Here _____. This is our classroom.
–There is _______ on using mobile phones at the gas station. --Do you mean talking on the mobile phone ________ at the gas station?
You __________ to leave until you __________ your work.
–So far _______________. -- That’s too bad.
China is a country __________ 56 different nationalities, among which Han ________ the majority of its population.
On Halloween, Children in costumes ask for candies ____________ shouting “ Trick or Treat”.