On national day a parade was held in Tian’anmen Square to the 60th anniversary of the founding of the PRC.A.symbolizeB.markC.reflectD.congratulate
—Do you mind if I smoke here? —________.
Can those________at the back of the classroom hear me?
At the opening________of the school, our headmaster gave a short speech.
Sarah pretended to be cheerful,________nothing about the argument.
More highways have been built in China,________it much easier for people to travel from one place to another.