—Jane and July are here. Did I introduce them to you?—No,you didn’t. I’ve seen them,but we__________.
The library's study room is full of students _______ for the exam.
The scientists were waiting to see the problem _______.
The foreigner tried his best, but he still couldn't make his point _______ .
People _______ in the city do not know the pleasure of country life.
The _______ price will save you one dollar for each dozen.