Mr Smith is strict __________ us __________ our studies.
According to their theory, the more severe the punishment, __________.
China Daily is __________ a newspaper; it keeps us in touch with the world.
Mr. Stevenson is great to work for—I really couldn't ask for a __________ boss.
There is a big library in our school. There are more than twice __________ five years ago.
—What does the model plane look like?—The wings of the plane are __________ of its body.