It's bad manners to keep________when the teacher asks you a question.
A.calm B.quiet
C.still D.silent
It's bad manners to keep________when the teacher asks you a question.
A.calm B.quiet
C.still D.silent
D [考查形容词词义辨析。句意:当老师问你问题时,不作答是不礼貌的。calm“平静的,镇静的”;quiet“安静的”;still“不动的”;silent“不出声的,沉默的”。]