Choose the correct answer.

1. Ronny ___________ have gone to Switzerland, but I'm not totally sure.

2. You ___________ have lied to me! Why didn't you tell me the truth?

3. Helen ___________ to have seen a doctor weeks ago. Why didn't she?

4. They ___________ have seen the play last night as they went to a football match instead.

5. Carl ___________ have been here by now. Maybe he got stuck in traffic.

6. You ___________ have been really excited when you heard you'd won the competition!