Вопрос по английскому языку:

4.Поставьте глаголы в нужное время и нужную форму Present Simple, Present
Continuous, Present Perfect, Present Perfect Continuous, Past Simple, Future Simple:
1. Look! Peter (to stay)
at the back door.
2. We (to miss)
the bus. Now we'll have to walk.
3. How long you (to be)
here?
4. I (to look)
them yet.
for my keys all the morning but I (not/to find)
5. Modern trains (to go)
very fast.
to the cinema next weekend, I think.
6. He (to go).
7. Ann (to like)
8. My parents (to buy).
9. I (to write)
playing tennis.
a delicious cake yesterday.
_ a letter for 2 hours.
10.Helen (to dance)
now.
11.Sam (to feed )
12. Nick (not to read)
13.Alice and Den (to be)
14.The doctor (to prescribe)
already the kitten.
_books every day.
at the café yesterday.
_a medicine to my granny two days ago.
nice and green.
15.Our town (to be).​