In the center of the garden a large number of people

1.In the center of the garden _____ a large number of people.

A.seats

B.seat

C.is seated

D.are seated

D

先不看划源线部分,将这个句子整理成正常语序,按照“主谓宾”排列,就是：A large number of people______ in the center of the garden.现在就很清楚了,是一个被动语态的句子,因为seat是一个比较特殊的动词,再其后加上ed后就变成了形容词,常用语有：to be seated等.因此此处是被动态oneself be seated,people是复数名词,用are,根据被动态的结构：be+pp(过去分词）,应该用are seated,选择D