HAVE
1. Was it necessary for her to spend so much money on it?
Did ........................ spend so much money on it?
ENOUGH
2. She's driving too fast for me to keep up with her.
She ........................ for me to keep up with her.
WELL
3. Susan and Frank don't like each other.
Susan and Frank don't ........................ with each other.
MIGHT
4. It's possible that he hasn't been informed about his uncle's death.
He ........................ informed about his uncle's death.
TOO
5. Mark is very patient, he'll never give up.
Mark is ........................ give up.
REGRET
6. I'm sorry I didn't go to college.
I ........................ to college.