1. — Hello, this is Shannon. I’m afraid I won’t be able to come to your office on time.
— ______ I’ll wait for you.
A. That’s OK. B. No doubt. C. Cheer up! D. Hurry up!
2. John, look at the time. ______ you play the piano at such a late hour?
A. Must B. Can C. May D. Need
