---Remember this, John. ________ you work, ______grades you’ll get.--Thanks, Miss Rose.
—What should we________ the old books? —Let’s ask our teacher how to________ them.
—______ do you walk your dog? —Sometimes.
.—Hello! May I speak to Mr. Hu? —Sorry, he isn’t in. _________
How long did it________ you to finish the task last month?
—When can we read in the library? —It ______ every day except Sunday.