III:
a) Are the chidren asleep? They must be sleeping. Everything is so quiet.
b) Is Helen studying? She can't be studying. All the lights are off.
c) Joe can't have financial problems. He just bought a new sport car. (il n'y a pas de He's).
d) What's that noise in the flat abouve? The neighbours may be moving the forniture or they might be having a party.
IV:
a) The chidren are waching when their mother come home.
b) Can you say that again? I'm sorry, I wasn't listening.
c) Where were you going when I saw you?
d) Mr Davies was reading the paper when the phone rang.
après l'exercice 5 je ne sait pas
