Who is ___________ man under the tree?
I won’t go to tomorrow’s party_____ I am invited.A. if B. unless C. When
—It is getting cold. Would you mind_____ the window?—Of course not.A. closing B. to close C. closed
—Who’s singing in the garden?—It _____be Mr. Brown. He always practices singing at this time.A. must B. can’t C. need
Little Tom _____computer games when his mother got home.A. is playing B. plays C. was playing
It’s going to rain. You’d better take an umbrella_____you may get wet.A. or B. and C. but