Lesson128 He can't be...He must be...
Is he ill or tired?
He can't be ill.
He must be tired.
Is it your new hat or your old one?
It can't be my new hat.
It must be my old one.
Is she Danish or Swedish?
She can't be Danish.
She must be Swedish.
Is he a dentist or a doctor?
He can't be a dentist.
He must be a doctor.
Is she forty or fifty?
She can't be forty.
She must be fifty.
Is it the 20th or the 21st today?
It can't be the 20th.
It must be the 21st.
Is he the youngest or the oldest of all the children?
He can't be the youngest.
He must be the oldest.
Is he reading or sleeping?
He can't be reading.
He must be sleeping.
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