We must __________ the right place to park our car.
---Shall we go shopping?---Good idea! But the supermarket _______ now.
Do you think Maths ______ useful subject?
---______ Mary happy today?---I don’t think so. She ______ look happy this morning.
______ is the first day of a week.
---Who’s that man ______a white shirt? ---He is Mr. Wu.