____ they ____ a cow yesterday?
You are much too fat. You’d better _______ too much meat. A. not eat B. don’t eat C. not to eat
—Must I take the medicine every day? —No, you _______. A. must B. mustn’ t C. needn’t
Michael, you should learn teamwork and pass ______ often. A. the ball me B. me to the ball C. the ball to me
—Students shouldn’t go to school _______ breakfast. —Yes, I think so. A. without B. with C. for
—Staying up late _______ bad for your health. —I’ll go to bed right away. A. is B. are C. was