well first i will tell you it is much easier to write in simple past for beginners in german not preterit. i know because ich wohne in deutschland. so try to us the GE form it works better for people learning german. unless your teacher wants preterit.
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Answer:</h3>
Sind/bin
<h3>
Explanation:</h3>
Wie alt <u>sind</u> Sie, Herr Maier? Ich <u>bin</u> 45 Jahre alt.
<em>Please</em><em> </em><em>refer</em><em> </em><em>to</em><em> </em><em>my</em><em> </em><em>answer</em><em> </em><em>from</em><em> </em><em>your</em><em> </em><em>last</em><em> </em><em>question</em><em> </em><em>for </em><em>t</em><em>he</em><em> </em><em>explanations</em><em> </em><em>for </em><em>Sind,</em><em> </em><em>bist,</em><em> </em><em>seid</em><em> </em><em>and </em><em>ist:</em><em> </em><u>brainly.com/question/24577682?utm_source=android&utm_medium=share&utm_campaign=question</u>
Bin is used if the subject is ich (I)
Example:
Ich bin 45 Jahre alt = I am 45 years old
Answer:
Ich gehe heute ins Kino!
Gehst du heute ins Kino?
Schaust du heute einen Film im Kino an?
Explanation:
