Tony is not as clever as Lucy, but he works______ than her.
He likes reading very much.Most of his money________on books.
—Why are you late,Jim? —Because there________a lot of traffic when I came here.
—Mike,why are you watching TV again? —I________my homework.
________energy,turn off the hot water after you take a shower.
—What do you think of my shirt?It________cotton. —It looks nice on you.