2. I expect Jason was so busy that he couldn't go to the match. MUST Jason __________________ to go to the match.

9. It wasn't necessary for you to postpone the meeting after all. OFF You needn't __________________ the meeting after all.

4. I expect he was driving too fast when the accident happened. He __________________ fast when the accident happened.

11. It looks as if I'll be late for work. ABLE I don't think I __________________ to work on time.

1. She must be lying about what happened. TRUTH She can't __________________ about what happened.

10. We finally succeeded in starting our journey at midday. ABLE It wasn't until midday that we __________________ off on our journey.

8. Algebra is still a mystery to me. ABLE I have __________________ understand algebra.

12. It was impossible not to laugh at the expression on their faces. HELP I __________________ at the expression on their faces.

5. It's possible that she hasn't decided yet. MIGHT She __________________ her mind yet.

7. Why weren't you doing your homework? SHOULD You __________________ your homework.

6. Why aren't you looking after the children: OUGHT You __________________ care of the children.