-Did you go to Sandy's birthday party last night?
-Did you go to Sandy's birthday party last night?
-Yeah.Every boy and girl in our class _____ invited.
A were
B have been
C is
D was
我觉得该选D every+n.单数 主语应该当作单数 v.就用单数
但是every boy and girl 里有个and
and连接两个并列主语谓语动词应该用复数
这里到底算哪种情况?