For each mini-dialogue, write the option that makes the most sense in the gap.
1 Bil:l I can't find my camera.
Ben
Bill: Yes, maybe. I'll look there tomorrow.
a) You should have kept it in a safe place.
b) You might have left it at school.
c)You couldn't have lost it.

2. Alex She didn't get my email.
Kat
Alex: I'm sure I did. I checked before I sent it.
a)You might have sent it to the wrong address.
b) You should have sent it to a different address.
c)You can't have sent it to the right address.

3. Clare :My dad wasn't answering his phone.
Liz
Clare: But he always has it.
a) He should have been at work.
b) He might not have gone to work.
c) He can't have taken his phone to work.