当你接到英国朋友的电话时,你应该先说:“ ”。 A. Goodbye. B. Hello! C. How old are you?
Mom, don’t worry ______me. I can take care of myself. A. about B. with C. for
Do you prefer _______?A. skate B. skates C. skating
—Must I finish my homework at once? — No, you ______.A. needn’t B. mustn’t C. won’t
You ______ wash your hands before meals. It is good for your health. A. may B. can C. must
It’s hot here. Please keep the windows _ A. closing B. open C. closed