--- Is there anyone here name isBetty?
---- Sorry, I don’t know.
| A．who | B．which | C．whom | D．whose |
—Excuse me, can you give me a _______? —Sure.
A. hand B. help C. ball
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