Exercise 47.2 Using commas and coordinating conjunctions

Use a comma and a coordinating conjunction (and, but, for, nor, or, so, or yet) to combine each of the following pairs of sentences into one sentence. Delete or rearrange words if necessary. Example:

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  1. The chef did not want to serve a heavy dessert. She was planning to have a rich stew for the main course.

    Question

    The chef did not want to serve a heavy dessert. She was planning to have a rich stew for the main course.
    The chef did not want to serve a heavy dessert. She was planning to have a rich stew for the main course.
  2. My mother rarely allowed us to eat sweets. Halloween was a special exception.

    Question

    My mother rarely allowed us to eat sweets. Halloween was a special exception.
    My mother rarely allowed us to eat sweets. Halloween was a special exception.
  3. Scientists have mapped the human genome. They learn more every day about how genes affect an individual’s health.

    Question

    Scientists have mapped the human genome. They learn more every day about how genes affect an individual’s health.
    Scientists have mapped the human genome. They learn more every day about how genes affect an individual’s health.
  4. Perhaps I will change my name when I get married. Maybe I will keep my maiden name.

    Question

    Perhaps I will change my name when I get married. Maybe I will keep my maiden name.
    Perhaps I will change my name when I get married. Maybe I will keep my maiden name.
  5. Penguins cannot fly. They cannot walk the way other birds do.

    Question

    Penguins cannot fly. They cannot walk the way other birds do.
    Penguins cannot fly. They cannot walk the way other birds do.