–Whose notebook is this? Is it Julie’s? –It _________be hers, she has gone to Beijing. A. must B. mustn’t C. can’t
—Can I help you? —Yes. Two ______, please.
There is ______ eraser on the desk..
The boy ____ his homework after school every day.
We’re looking forward to _____ your school.
The children ____ to go sightseeing tomorrow.