Final answer:
The sentence is corrected by adding the provided words, 'she' and 'play', resulting in the sentence: 'Her hand started hurting because she played computer games all day.' This sentence conveys that playing computer games all day resulted in her hand hurting.
Step-by-step explanation:
The sentence 'Er hand started hurting because computer games all day' is missing a subject and a verb to make it complete. In this case, we can use the words provided, 'she' and 'play', to complete the statement. Thus, the complete sentence becomes: 'Her hand started hurting because she played computer games all day.'
This sentence tells us that the action of playing computer games for an extended period resulted in her hand hurting. The pronoun 'she' serves as the subject of the sentence, and 'played' is the verb that designates the action she performed. 'Computer games all day' is the content loaded into the sentence that describes what she was doing when her hand started to hurt.
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