1. The last time Peter was here was in 1990.
since
Peter hasn't 1990.

2. It's a shame I don't have a camera.
wish
I camera.

3. She teaches English.
works
She teacher.

4. They found the film very boring.
by
They the film.

5. I believe you should buy a new computer.
I
If , I'd buy a new computer.

6. Excuse me, I can't get past you!
way
Excuse me, you .

7. This is my first visit to Argentina.
time
This is the to Argentina.

8. Nothing has been decided yet.
no
made.

9. She returned the blouse to the shop because it was too small.
took
As the blouse was too small, she to the shop.

10. If you drive faster, it's more dangerous.
the
The dangerous it is.