从ABCD四个选项中找出划线部分读音与其它三个读音不同的选项。

A．this B．that / ө / C．thanks D．father

A．that B．map C．apple D．what

A．room B．school C．book D．too

A．bed B．desk C．help D．she

A．bus B．student C．uncle D．under