1. --Hello._________ I speak to John?

--I'm sorry, you ________ have the wrong number. There's no one here by that name.

A. Will, can              B. Could, would 

C. May, must              D. Shall, should

2. --There were already four people in the car but they managed to take Jack as well.

--It ________ a comfortable journey.

A. wouldn't be            B. couldn't have been       

C. can't be                D. mustn't have been