Must and can't
You've been travelling all day. You
be very good. It's always full of people.
be very good. It's always empty.
I'm sure I gave you the key. You
have it. Have you looked in your bag?
You're going on holiday next week. You
be looking forward to it.
It rained every day during their holiday, so they
have had a very nice time.
Congratulations on passing your exam. You
be very pleased.
You got here very quickly. You
have walked very fast.
Bill and Sue always travel business class, so they
be short of money.
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