Don't lie to me that you were ill yesterday. You (be) ill - Don said you were at the ice hockey match last night.

Matt _______ graduated college in 1997. He was only 14 years old. may not have/ might not have/ must not have/ couldn't have

I can’t believe you met Steve Jobs in person. That _______ been amazing! should have/ must have/ couldn't have/ might have

You _______ mentioned it in front of the rest of the team. I would have talked to him in private about it. shouldn't have/ should have/ would have/ could have

John _______ been at the party last night. He’s not even in the country. He flew to Japan yesterday morning. couldn't have/ may not have/ might not have/ shouldn't have

I didn't know you were going to Phil's party yesterday. You (tell) me!

His number was busy all night - he (be) on the phone continuously for hours.

I can't believe Jim hasn't arrived yet. He (catch) the correct train.

It (be) Mickey I saw at the party. He didn't recognise me at all.

I didn't do very well in the test.I (spend) more time studying.

You did very well on the exam. You (study) a lot.

They said they were going to pick us up at 7 p.m. I think they _______ taken a wrong turn somewhere. must not have/ should have/ may have/ would have

I’m not a fan of their logo. I think they ______ changed it years ago. could have/ would have/ must have/ should have