When the little ugly duck grew , it grew a beautiful swan.
You’d better _______ too much meat. You are much too fat.A . not eat B.eat C.not to eat
— Must I take the medicine every day? — No, you ____.A. must not B. may not C. don’t have to
We should take ____ active part in the battle to stop the germs.A.the B.an C. /
_______ necessary for us _______ English well.A.It’s; to learn B.It’s; learn C.That’s; learn
—Watching TV too much _______ bad for your eyes.—I’ll go to bed right away.A.be B.are C.is