May we leave the classroom now — NO, you . You to leave until the bell rings.

填入下面文段空白处的词语，最恰当的一组是（ ）有人说，医生的天职是治病，与其在网上做科普，不如在诊室多看病。　①　，这是一个观念误区。一位医生　②　多努力,病人永远看不完。在诊室，医生一天最多看几十个病人；　③　在网上,医生却可以影响上千万人。很多病人都是到了病程中后期才来就医，　④　费用高，　⑤　疗效也差。如果医生都能常上网做科普，把健康的钥匙交给公众，这　⑥　也是在治病救人吗① ② ③ ④ ⑤ ⑥

Do you know the boys on the beach—Sorry. It’s too far to see ______ clearly.

He began to take political science ____ only when he leftschool

The loss has not yet been ____ accurately, but it is believed to be well beyond a hundred million dollars.[ ]