Modal verbs. Infinitive, -ing form

1. I failed my Maths test, I probably _____ have studied harder.

2. Maria ______ have seen the robbery. She was at school when it took place.

3. Peter ______ have laughed at Jane; he hurt her feelings

4. Please be more careful! You _____ have been injured. 

5. I can't afford _______ too much money on a holiday this year, so I think I'll go camping.

6. Lisa has decided _____ engineering at university.

7. Did you remember ______ your mother on her birthday or did you forgot about it?

8. Can you imagine _______ in Miami for a year?

9. I ______ my plants unwatered for a week; now it's too late.

10. Sally had a dress _____ for her graduation ball.