English Skills with Readings 8th Edition by John Langan

تمرين 41

There are two run-ons in each passage. Correct them by using the following methods:
• Period and capital letter
• Comma and one of these joining words: and, but, or so
• One of these dependent words: although, because, or when
The medical researcher was honored by her colleagues who could have dreamed that a cure for such a deadly disease could ever be found Her research had taken years she was persistent. She never gave up.
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