Frank, are your parents strict with you— Yes, they always make me _______ my homework before I go out.

24．The purpose of education _____ be to provide students with a value system—-not to prepare them for a specific job.

He_____ articles for our wall-newspaper these years,and he____ about thirty articles.

Have you finished your homework yet— No, I’ll finish it in ________ ten minutes.

_______ the top leader, all of the otherofficers entered the hall.