__________wasreportedyesterdaytwobuildingswerecaught

__________was reported yesterday, two buildings were caught on fire in the town.

A． It

B． As

C． What

D． That

正确答案：B
本题考查非限制性定语从句关系代词as代指后面主句全部内容题干意思：据昨日报道城里有两座大楼起火了