Going on a trip________be expensive and difficult , so making a plan is necessary. A. must B. ought to C. shall D can
Helen ____ go on the trip with us, but she isn’t quite sure yet.
Great changes have taken place in Cangnan. We’re sure Cangnan will be even_____ tomorrow.
Look out when crossing the road, _____ you may be hit by a car.
Tom earned some money____ babysitting for the couple living next door.
— Do you know ___________ woman in pink over there? — Yes. She is ___________ office worker of Hilton Hotel.