Directions (79-83): Each of the following questions consists of a paragraph, which may contain one or more grammatical errors. Read the given paragraphs carefully, and then decide how many errors each paragraph contains.

Regular exercise has shown to have numerous physical and mental health benefits, including reducing the risk of chronic diseases such as heart disease, diabetes, and cancer. Exercise can also help to improve mood, reduce stress and anxiety, and promote better sleep. By incorporating regular physical activity into our daily routines, we can improve our overall health and well-being.

Let's analyze the paragraph sentence by sentence to identify any grammatical errors:

1. Sentence 1: "Regular exercise has shown to have numerous physical and mental health benefits, including reducing the risk of chronic diseases such as heart disease, diabetes, and cancer."
• Error: The phrase "Regular exercise has shown to have" is grammatically incorrect because it uses the active voice. Since exercise does not perform the action of showing, but is rather shown by scientific evidence/studies to have these benefits, it must be in the passive voice.
• Correction: Change "has shown to have" to "has been shown to have".

2. Sentence 2: "Exercise can also help to improve mood, reduce stress and anxiety, and promote better sleep."
• Analysis: This sentence is grammatically correct. The infinitive verbs "improve", "reduce", and "promote" follow a parallel structure linked to "help to".

3. Sentence 3: "By incorporating regular physical activity into our daily routines, we can improve our overall health and well-being."
• Analysis: This sentence is grammatically correct and free of errors.

Consequently, the paragraph contains only one error.