Mr. and Mrs. Green work in the hospital, but they have no children. So they belong to _____.
—Where is Miss Wang? —She went to Hainan Island last week and will return _________ six days.
There will be ____ cars and ____ pollution twenty years later.
—What is a resolution?—It’s
My grandfather me a postcard from New York last week.
—are you going to visit your uncle?— Next week.