1. Let's find whether you have a booklet introducing your school or you classroom.

2. With what contents would you introduce your school or your class?

3. 'It's 37 years old' means that it has passed 37 years old since it was constructed.

4. We use old for not only mentioning man's age but also for the history of a thing.

5. Ms. is a title we use before both a married woman and an unmarried woman in common.
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Are the sentences above all grammatical?

1. Let's find out whether you have a booklet introducing your school or your classroom.

2. How would you introduce your school or your class?

3. 'It's 37 years old' means that 37 years have gone by since it was constructed. You could substitute "passed" for "gone by."

4. We use old not only for mentioning a person's age<~~add comma but also for the history of something.

5. Ms. is a title we use both for a married woman and an unmarried woman.
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Are the sentences above all grammatical? I've made corrections in bold.