I haven't seen him in a few days. I think he _____ be on vacation.
might/may/could
You’ve been travelling all day. You ______ be very tired.
must
Congratulations on passing your exam. You be_________________________ very pleased.
must
Let's go to that store. It _____ be cheaper but I'm not 100% sure.
might/may/could
That restaurant_________________________be very good. It’s always full of people.
must
Rewrite using a modal: I'm pretty sure it is expensive.
It must be expensive.
You’re going on holiday next week. You_________________________be looking forward to it.
must
Rewrite using a modal: It's impossible that she is here.
She can't be here.
He is not here. I guess he _____ be sick.
might/may/could
That restaurant_________________________ be very good. It’s always empty.
can't
Rewrite using a modal: I'm not sure it is expensive.
It might/could/may be expensive.
Rewrite using a modal: There is no way it is good for you.
It can't be good for you.
Bill and Sue go away on holiday very often, so they_________________________ be short of money.
can't
Rewrite using a modal: Perhaps Margaret is in her office
Margaret/She may/could/might be in her office.
Her friend _____ be Australian, but I've never asked him.
might/may/could