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1. Your mother ________ be a great cook. You are always so keen to get back home to eat!
2. I don't know why I am so tired these days. I ______ be working too hard. Or maybe I am not sleeping too well.
3. Do you know where Carl is? He _______ be out - his car keys are on the table.
4. You seem to know everything about the theatre. You ______ go every week.
5. Oh, the phone is ringing. Answer it. It ______be Kate. She always rings at this time.
6. I wouldn't swim in this river if I were you. It ______ be dangerous
7. He ______ be his son, they look completely different.
8. You have walked for ten hours. You ______ be exhausted.
9. Your parents are really late. Do you think they _______ have forgotten the invitation?
10. Life ________ be easy for you with three jobs and a big family.
