---We are too busy to take ________ holiday at ________ present.---But I think we’ll be able to take ________ two weeks from now.
—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.