Put in must or can’t.
It rained every day during their holiday, so they *** have had a very nice time.
You’ve been travelling all day. You must be very tired.
That restaurant must be very good. It’s always full of people.
That restaurant can’t be very good. It’s always empty.
You’re going on holiday next week. You must be looking forward to it.
It rained every day during their holiday, so they can’t have had a very nice time.
Congratulations on passing your exam. You must be very pleased.
You got here very quickly. You must have walked very fast.
Bill and Sue go away on holiday very often, so they can’t be short of money.