张扬是个乐于助人的同学。课余,许多同学找他问问题。不管男生还是女生,张扬都一视同仁。后来,不知是谁造谣生事,说张扬特别关照某个女同学。他应该( )
Staying up late _____ our health. We should go to bed early and get up early. A. is good for B. is useful for C. is harmful to
We should _____ the rubbish when we go travelling. A. take off B. turn off C. take away
I must ask my father to give up _____ . It’s bad for his health. A. smoke B. smoking C. to smoke
Columbus ______ America in 1492. But he didn’t explore it. A. looked forB. found out C. discovered
—Jim, get up right now, _____ you will be late for school. —OK. Mom. A. and B. or C. But