——Do you know the man wearing a pair of glasses?-------Yes.He’s a teacher of _________.He teaches _________history.
The eggs in this box are heavier than _______ in that box.
—I called you this morning, but nobody answered. —I _______ the flowers in my garden at that time.
Helen caught a cold the day before yesterday. But she’s ______ today.
—How many students are there in your school? —About_______ students, I think.
Tom is ______ of the six boys.