The correct answer is 1. Being a good reader is somewhat like driving a car; both reader and driver must learn to shift gears skillfully.
Explanation
A paragraph is composed of a topic sentence, supporting details and a conclusion. The topic sentence is the main idea of the text, it contains the main topic of the paragraph and opens the text; supporting details, as its name implies, is information that supports the main topic with new information and describes relation with other topics; conclusion is the final part of the paragraph and contains the conclusion, for example, a teaching or a reflection, also closes the main topic. From the above, the topic sentence is "Being a good reader is somewhat like driving a car", because introduces the main topic of the paragraph and opens the text. So, the correct answer is 1. Being a good reader is somewhat like driving a car; both reader and driver must learn to shift gears skillfully.