28.—How about setting up an out-of-class club to share our interests and hobbies? —Great! That’s exactly what I_________.
—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.