---You look a bit worried .----It’s raining , but I ________my umbrella at home .
—You’d better not read _______. It’s bad for your eyes.—You’re right. I won’t do that again.
_______ necessary for us _______ English well.
—I am afraid we will miss the early bus.—Don’t worry. We have _______ time to do it.
—May I use your dictionary, Lily?—Sure, _______.
—Watching TV too much _______ bad for your eyes.—I’ll go to bed right away.