Помогите, пожалуйста, вставить правильный вариант
1. I realesed I... my keys after left the house
a) forgot
b) have forgotten
c) had forgotten
2. ... we started eating, the telephone rang.
a) As soon as
b) Then
c) While
3. Tom dpopped his mobile phone while he... for the bus.
a) run
b) was running
c) had run
4. How long... Daniel?
a) have you been knowing
b) do you know
c) have you known
5. We should leave now as... late.
a) it`s getting
b) it gets
c) it got
6. You... do your homework now!
a) would better
b) had better
c) ought
7. What... ?- I`m an engineer.
a) are you doing?
b) did you do
c) do you do