The teacher, as well as all his students, ______by the dancer's performance.
【正确答案】 A
【答案解析】解析:本题考查主谓一致。句子主语后有together with,as well as,along with引导的名词短语时,这些介词短语不是句子的主语部分,谓语动词与前面的主语保持一致。这句话的主语是the teacher,所以后面的动词用单数,另外表示“对……有深刻印象”应该是be impressed by/with,故本题的答案选A。