—Whose is this blue sweater?—It ___ be Hong Tao’s. His is white.
The story is _________ and all of us are _______ in it.
—I find difficult to learn English grammar. —You can do more English exercises.
Don’t worry about the new words. You can _________in a dictionary.
__________the mooncakes are!
—How do you learn English, Tony? —I often practice English _____ chatting ______ my American friends.