How to improve english writing skill?

Dogs make wonderful pets because they keep us happy and healthy, the topic sentence is "dogs make wonderful pets". can someone me write a unrelated sentences to the topic and can be eliminated. need asap

If you had read the label carefully, you wouldn’t have bought the expired product.what does it means? a. you didn’t buy the expired product because you read the level carefully.b. you didn’t read the label carefully so you bought the expired product.

The following question asks about one or more selections from your literature textbook. you may use your textbook to answer this question. both “lob’s girl” and “jeremiah’s song” contain flashbacks. in a paragraph, explain what this plot technique adds to the stories. support your answer with one detail from each story.