Answer Key

Pre-test

Choose the correct expression.
  1. Who  [called] ?
  2. Who  [knows] the answer?
  3. What  [was] her phone number?
  4.  [What was she looking at] ?
  5.  [Who are you waiting for] ?
  6. What  [happened] ?
  7. Who  [changed] the password?
  8. Who  [does the book belong] to?
  9.  [Did everybody receive] the information?
  10. When  [will they be] arrested?