Choose one of the following to complete the sentences

Ex4. Choose one of the following to complete the sentences.
Must have - Might have - Should have - Can't have
1. John ____ gone on holiday. I saw him this morning downtown.
2. Nobody ____ answered the phone at the clinic. It closed early.
3. I ____ revised more for my exams. I think I'll fail!
4. Sarah looks really pleased with herself. She ____ passed her driving test
this morning.
5. I didn't know you were going to Phil's party yesterday. You ____ told me!
6. I can't believe Jim hasn't arrived yet. He ____ caught the wrong train.