填填连接词：Is this the same bike______your bro used to use?

as
the same as 固定词组，和……一样。
另外bro怀疑是brother

which or that

which 或that，如果要用as也可以，就在use后加个it作宾语

that，是强调句的疑问形式It is ……that 句型

that

AS