Writing topic sentence

Topic sentences    Writing

The main idea is usually found in the first sentence of the  paragraph. This sentence is called the topic sentence. 
 

A.Read these paragraphs about people’s best and worst qualities. Underline the topic sentence in each paragraph.

  I think that my most positive quality is that I’m always pretty calm and cool, especially when something breaks. I’m really into solving tricky problems and finding solutions to things. My specialty is electronics. People come to me if something goes wrong with their laptops or their MP3 players or even their cell phones. For example, two days ago, my dad’s brand new computer suddenly froze up. He was afraid of causing more damage, so he asked me to figure out the problem. It only took me 15 minutes to fix it, and I loved doing it.