The professor, some of his assistants, to attend our discussion this afternoon.
A. and; is
B. as well as; is
C. or; are
D. except for; are
网友回答
A. and; is
(答案→)B. as well as; is
C. or; are
D. except for; are
解析：考查连词及主谓一致。A项谓语动词用are，as well as也，以及，连接两个主语谓语动词与前一个保持一致，故选B。