This list of countries by rail transport network size based on International Union of Railways data ranks countries by length of rail lines worked at end of year updated with other reliable sources. These figures also include urban/suburban mass-transport systems; as well as lines which are not used for passenger services. 1 List.
Review with students what a topic sen-. tence is. (The topic sentence is the sentence. containing the main idea of a paragraph-. often, but not always, the first sentence in. the paragraph.) Put a couple of good models. from the daily newspaper on the overhead-.
Answers. Relevance. Rating Newest Oldest. Best Answer: The thesis is the main idea of your essay. It is found in the opening paragraph. A topic sentence is the main idea of each paragraph that supports your thesis statement. You should know the main idea of the whole paragraph by reading the topic sentence. Here is an example for you, just using a thesis and topic sentences: Cats are the greatest pets in the world.