I.Choose the approprite from for the verbs in brakets:
  1. At that moment I (to think) the man (to be) a robber.
        a) was thinking, was beeing 
        b) was thinking,was
        c) thought, was
        d) thought, was being
II. Choose the correct sentence:
   a) Have you ever see a waterfall? - No, I haven't.
   b) Have you ever been to Moscow? - No, I didn't.
   c) Have you ever travelled across the desert? - Yes, I've travelled.
   d) Have you ever climbed the mountains? - Yes, I have.