1. We seldom have goods returned to us because they are faulty.
Seldom because they are faulty.

2. Her business was so successful that she was able to retire at the age of 50.
So to retire at the age of 50.

3. Passengers are not permitted to open the doors themselves under any circumstances.
Under to open the doors themselves.

4. The door could not be opened without using force.
Only opened.

5. They don’t know how lucky they are to live in such a beautiful house.
Little to live in such a beautiful house.

6. The play is so popular that the theatre is likely to be full every night.
Such to be full every night.

7. She started asking me questions as soon as I had stepped through the door.
No sooner she started asking me questions.

8. If you happen to see him, tell him to try harder.
see him, tell him to try harder.

9. If by any chance you feel you are in trouble, please, call me.
you are in trouble, please, call me.

10. Look, the bride is coming. She looks gorgeous.
. She looks gorgeous.