The following are supposed to be topic sentences. Some are good, whereas other are bad. Justify your choice. a- Hybrid automobiles are more economical to operate than gasoline-powered cars. b- The new hybrid automobiles are very popular. c- Hybrid cars have good fuel economy because a computer under the hood decides to run the electric motor, the small gasoline engine, or the two together. 2- Combine the following sentences into one sentence, and define the resulting sentence (compound, complex or compound-complex) a- Food cooks faster in freshwater. - Saltwater boils in higher temperature than freshwater. b- They do not eat a lot of red meat. - They do not eat many dairy products.

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c- I could not decide where I would work. - I had to go to work immediately after I graduated from college. - I wanted to travel after I graduated from college. 3- Underline the clauses in the following sentences and indicate their types, functions, and the word(s) they modify when applicable a- Dogs are pets which are loyal to their owners. b- I will try walking to school every morning. c- He is sure that he will have a nice holiday this year. d- The new hybrid automobiles are popular because of their fuel economy, environment friendliness and evident practicality.

4- Correct the errors in the following sentences. a- Having heard the news about the accident, it was considered terrible. b- Tom thinks that his friend is intelligent, kind and having sense of humor. c- Mary needed to tell him the truth she refused to speak a word 5- Underline the phrases in the following sentences and indicate their types, functions, and the word(s) they modify when applicable a- Believing in justice, the lawyer did his best to defend his clients.

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b- Swimming against the stream is harmful. c- Mr. Johnson, the bank manager, is arriving in a few minutes.