You ______ wash your hands before meals. It is good for your health. A. may B. can C. must
I'm going to a party. Could you tell me whether my hat ______ the brown coat?
—Please don't step on the grassland. Can't you see the sign "______ the grassland" ? —Sorry, sir! I didn't see it.
—How do you plan to go for your next trip? —I'm not sure. I ______ take a plane.
All of them can take this job, but I want to know who is______ .
—lt seems that you are very busy with your subjects all the time, Sally. —I have to. I have a lot of ______ from the society.