–How long can I _____ this novel Gulliver’s Travels?-- Only two weeks.
A lot of trees________on the hill yesterday.
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.