Use preset simple , contunuous, perfect or persect continuous 1 read ) a very interesting book now 2 raing fall) in the sahara 3 i (to be) the doctor twice this week 4 jane(to this university since 5 what (to the last 45 minutes? 6 we (to cat for the 3 yars 7 jack (to what i am saying 8 the film (to 9 tonight 9 look.their plane(to 10 i(not/to you are staying

1.  I am reading a very  interesting book now.
2.  Rain seldom falls in the Sahara.
3. I have been to the doctor twice this week.
4.  Jane has been teaching at this university  since ...
5.  What have you been doing for the last 45 minutes?
6. We (have had this cat for 3 years.
7. Jack, are you listening to what I am saying?
8.  The film starts at 9 tonight.
9.  Look.Their plane is landing.
10. I do not understand what you are staying.