The teacher and writer as well as many guests invited to the party held yesterday.A. isB

问题补充：

The teacher and writer, as well as many guests invited to the party held yesterday.

A. is

B. were

C. are

D. was

答案：

A. is

B. were

C. are

(答案→)D. was

解析：考查主谓一致。本句主语是the teacher and writer教师兼作家是单数，yesterday说明本句用过去时。