问题补充:
Most of the teachers to visit our school were young ones.
A. invited
B. to invite
C. being invited
D. had been invited
答案:
(答案→)A. invited
B. to invite
C. being invited
D. had been invited
解析:此题考查的是过去分词作定语,根据题意大多数老师是被邀请到我们学校参观,在结合时态,因此选invited。