— Would you please tell me _________? — In half an hour. A. when the plane left B. when the plane will leave C. when will the plane leave
—What do you think of the song “You and Me”? —It _______ great. I love singing it.
David visited lots of _______ in the world.
The story is ________ and all of us are _______ in it.
Pens are used to write ______and paper is used to write ______.
I didn’t know ______.