With a lot of modern buildings _______, today’s cities are quite different from _______ of the past.
—What do you think made Mary so upset? —_______ her new bike.
When I handed the report to John, he said that George was the person _______.
She looks forward every spring to _______ the flower-lined garden.
A cook will be immediately fired if he is found _______ in the kitchen.
It is said that in Australia there is more land than the government knows _______.