---I can’t work out the math problem, what should I do?---You can turn to the teacher.
—Thanks for your help,Mary! —________.
—_________ are these trousers? —The trousers on the bed? They are only $15.
—Who ______ P.E? —Sam _______.
—Why ______ she like history? —Because ________ interesting.
—What _______ your favorite subject? — My favorite subjects _______ art and P.E.