A 前面是has never 是否定 ,所以反問(wèn)時(shí)用肯定 .后面的回答要做到“yes/no”與后面的回答內(nèi)容一致 后面是肯定的回答,說(shuō)他努力學(xué)習(xí)沒(méi)有遲到,所以用yes答案是no 想清楚了告訴我那就是no 是對(duì) be late for his class的回答 意思是no, he hasn't been late for his class就是說(shuō)He has been very hard-working since he came to the university. 是陳述句 但是意思是他勤奮沒(méi)有遲到 要和上個(gè)問(wèn)題呼應(yīng) 不能單看句式？就是說(shuō)He has been very hard-working since he came to the university. 是陳述句，但是要和上個(gè)問(wèn)題呼應(yīng) 不能只看句式？對(duì) 你要看意思 它想說(shuō) 李明沒(méi)遲到 所以用NO