本讲为2006年下半年新的教学内容，请对照教材、练习册和语法书听录音！

When you come here, I’ll let you know.

  My nose runs every time I catch a cold.
  The machine starts the moment the button is pressed.
  He _will be_ (be) happy when he knows it.
  He’ll be happy when he _knows_ (know) it.
  In that
  Now that
  So that