The chairman ________ hold office for five years according to the constitution.

(2013·济南一模)—Can you keep the secret?—You ________ worry —  I'm not going to mention it to  anyone.

—_______ I take the newspaper away, please ?—No, you mustn’t. You _______ only read it here.

Keep up good state of mind even if you ________ fail plenty of times.

There’s still an hour left, you _____ go in a hurry.