Great changes have taken place in the town.等于什么？

Question

Great changes have taken place in the town.等于什么？等于_ _taken great changes in the town

Answer 1

there has been追答

there have been

追问

第三个空是taken

好像是对的,谢谢

Answer 2

Great
changes
have
taken
place
in
the
town
。这个城镇发生了巨大的变化。
它的同义句为：
There
have
been
great
changes
in
the
town。