She must work pretty hard.
He may be her professor.
He could be one of her friends.
She can't be more than 12.
She must not go out much.
They might be feeling sad.
She must be graduating today.
She must be a genius.
Maybe he's her professor.
I bet she works pretty hard.
I bet she doesn't go out much.
I bet she's graduating today.
It's not possible she's more than 12.
I bet she's a genius.
It's possible he's one of her friends.
Maybe they're feeling sad.
