Exercise

Fill in the correct preposition...
  1. The program starts  [at] 7 pm.
  2. She doesn't go to work  [by] car. She goes  [on] foot.
  3. The visitors are waiting  [in] the garden.
  4. Simon is studying philosophy  [at] university.
  5. The plane flew  [over] very high mountains.
  6. She's sitting  [between] Jack and Bob.
  7. We live  [on] the first floor.
  8. She's going  [to] work.
  9. I heard it  [on] the radio.
  10. I'll do it  [after] the TV news.