Question

Use must and the information in the parentheses to make sentences, as in the example.

(hospitals - to be - open - on holidays)
Hospitals must be open on holiday.

now you:

(you - to be - at least twenty-one years old - to adopt - a child)
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Answer 1

Resposta:

To adopt a child you must be at least twenty one years old

Answer 2

You must be at least twenty-one years old to adopt a child.