Galileo originated the method of
  controlled experiment _____ now forms the
  basis of scientific investigation.
  A) what
  B) who
  C) where
  D) whom
  E) which

  They met some people _____ sons were all football players.
  A) who
  B) who's
  C) whom
  D) whose

  _____ I am talking about does not really concern you.
  A) What
  B) That's what
  C) Why
  D) It's why

   What was that notice _____ ?
   A) at that you were looking
   B) you were looking at
   C) you were looking at it
   D) which you were looking

  The man _____ you met at the party was a famous film star.
  A) who
  B) when
  C) where
  D) which

  The girls _____ talked to were quite happy.
  A) we
  B) which we
  C) those we
  D) what we

  That's the hotel _____ last year.
  A) which we stayed
  B) at which we stayed at
  C) where we stayed at
  D) where we stayed

  The student couldn't remember the year _____ Hitler was born.
  A) when
  B) which
  C) at which
  D) where

  A chameleon is a tree lizard _____ can change colors in order to
  conceal itself in the vegetation.
  A) with which it
  B) that
  C) whose life it
  D) that it

  Do you know anyone _____ speaks Japanese?
   A) which
   B) that or which
   C) that or who