—Can you guess if they        speaking English with us?
—I think they will do if they        free.

—Where is Mr. Zhao?
—He        to Shanghai. He’ll come back        a week.

—        your son        a camera?
—No. He      one this summer vacation.

—I want to know if Lucy        us in the fashion show tonight.
—I believe if she        her homework, she will join us.

If we        take environmental problems seriously, the earth        worse and worse.

Your uncle will come to see you as soon as he        here.

The summer vacation will begin next week. David          to stay with us.

There        a meeting tomorrow afternoon.

—Mom, when can I go out to play football?
—Finish your homework first, or I       let you go out.

I predict he will be an engineer      ten years because he is so interested in making things.