Granny will tell us wonderful stories tomorrow. - We will be told wonderful stories (by Granny) tomorrow.
Did they grow flowers last summer? - Were flowers grown last summer (by them)?
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Написанное в скобках можно опустить
Granny will tell us wonderful stories tomorrow. - We will be told wonderful stories (by Granny) tomorrow.
Did they grow flowers last summer? - Were flowers grown last summer (by them)?
***
Написанное в скобках можно опустить