Read the excerpt from Sophia’s letter to the manager of an automotive shop. I bring my car to your shop often. This time, however, I am not happy with the service I got. Which is the best revision of the underlined portion of the sentence?

“I am dissatisfied with the service I received” expresses the complaint clearly and uses a more formal tone suited to a letter to a business manager. Choice A is more conversational, and choice B is grammatically incomplete because it needs “am” before “pretty angry.”

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