The correct answer is “teacher”
The appositive phrase is “, a teacher at Lawson,” as it adds additional information about a noun (Dave Lewis). It is usually framed between commas if the information provided is not essential to understand the meaning of the sentence.
Answer:
The American equivalent would be Three can keep a secret if two are dead.
Basically, if you don't trust someone, don't tell a secret.
Explanation:
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Society would be very chaotic and full of mistrust as people will say things they didn’t mean to say. It is human nature to protect and not reveal certain thoughts.
Hope this helped!