—Is Nancy knocking at the door?—No, it ________ be Nancy. She has gone to Guangzhou.A. can’t B. mustn’t C. won’t
Thanks for _______ me to your party.
Do you go to school _____ Saturday morning?
This piece of music is _______popular than that old one.
________important for everyone to have a healthy lifestyle.
We have no time to play. We have _________ homework to do.