选出恰当的应答语。

  A．There was no computer room．

  B．I looked it up on the Internet．

  C．I went to Mountain Tai．

  D．He tripped and fell in the race．

  E．I went there by plane．

( 1 )____( 2 )____( 3 )____

( 4 )____( 5 )____

在一定的空间范围内，____与____所形成的统一整体叫做生态系统．包括____部分和____部分．