—What’s this?—It’s __________ UFO.A.a B.an C.the
My favorite ___________ is, “A friend is like a mirror.”
—Where do you want to go to have dinner? — I have no idea. _________________________.
— What did you do last Sunday? —_____________________.
We often see Yao Ming in __________.
—What does your father think of Up Up Day? —_______.