How long a course of lectures on Medieval History?
does Professor Donaldson deliver
is Professor Donaldson delivering
has Professor Donaldson been delivering
has Professor Donaldson delivered
Nora, you look awfully tired. What all day?
do you do
are you doing
have you been doing
have you done
Their car is as good as new though they it for a number of years.
have been having
Jake is a good footballer. Do you know since when football?
he has been playing
has he been playing
is he playing
You may take this magazine. I through it already.
have been looking
Jerry promised to come to work in time. He is not here, and he even .
hasn't been calling
I think you very silly. Don't get out of bed. You'll only make your temperature go up again.
David is quite an athlete. He wants to be strong and healthy that's why he every morning.
has been jogging
- Do you remember me? - Of course, I do. We several times before.
have been meeting
Look here! I simply refuse to believe what you me now.
have been telling
Sara, my next door neighbour, has a car, but she it very often.
hasn't been using
Jeremy basketball this season; he wants to concentrate on his studies.
hasn't been playing
Susan is a fashion designer. Now, she at a new set of clothes to be shown at a fashion show in April.
has been working
My mother is a medical nurse; she takes care of sick and old people. What for a living?
does your mother do
is your mother doing
has your mother done
has your mother been doing
My cousin Jake has got a lot of books, most of which he .
hasn't been reading
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