—There’s ______ ball on the ground. Would you please pass ______ ball to me?—With pleasure.
— Must I take the medicine every day? — No, you ____. A. must notB. may notC. don’t have to
We should take ____ active part in the battle to stop the germs. A.theB.anC. /
_______ necessary for us _______ English well. A.It’s; to learnB.It’s; learn C.That’s; learn
—Watching TV too much _______ bad for your eyes. —I’ll go to bed right away. A.beB.are C.is
We must keep our classroom______. A. cleaning B. cleanC. to clean