Exercise

Fill in the correct form of the verb in brackets.
  1.  (work) on this new idea for a few weeks now, and I think you will like it.
  2. Prague Castle  (stand) above the town for hundreds and hundreds of years.
  3. Jack  (make) twelve phone calls so far today.
  4. Sorry I'm late. Have you  (wait) long?
  5.  (read) the book you loaned me. It is really good so far!
  6. You look tired. – Yes, I  (run) around all day.
  7. Scientists claim that the universe  (expand) quite a lot in the last ten million years.
  8.  (read) the book you loaned me. Thanks, it was great!
  9. Of course, they also say that it  (expand) steadily since the beginning of time.
  10. That strange man  (stand) by the bank all day.