Will there be _______ people in China in ten years? No, there won’t.
Someone is knocking at the door. It _______ my mother. It’s time for her to be back.
The floor is so wet. Let’s _______.
The flood in 1998 washed lots of houses _______ and lots of people _______.
—I’d like to take five days off, Mr. Smith.—______ . Don’t you know we’re very busy these days?
—We only live once, but if we live a wonderful life, once is enough.— ________ I agree.