срочно!!!люди помогите.....
вместо пробелов вставте : the salt of the earth ; come down to earth ; cost the earth ; heaven and earth  ; how on earth.
  
1.how ______ could my friend find out about me plan ?2.People who spend their free time to community or social work may be______.3.The oil companies of Atyrau region are prepared to move ______ to stop killing fish of the Caspian Sea.                          4.Dmitry and Omar are going to build a disposal garbage centre , but I think soon they'll ____ .                              5. This centre will ______.