时态语态11.In the center of the garden _____ a large number of p

选D是对的,原因在于：先不看划线部分,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

选A
你只要记住方位词在句首时，后面紧跟的动词要加S，除开过去时态等
你答案绝对有错，即使你答案是对的，那题目也要改成：In the center of the garden a large number of people are seated.

a large number of people, 注意 "a" = "一" 群 = 单数， 需加 "s"