The teacher together with his students down at the desk and having a discussion in the classroom.
A. is sitting
B. sat
C. are sitting
D. would sit
网友回答
(答案→)A. is sitting
B. sat
C. are sitting
D. would sit
解析：如主语是单数,尽管后面接as well as no less than , with, like, together with , but, expect , besides等引导的词组,谓语还是用单数.