Subject-verb agreement is a critical stumbling block for many students when facing sentence correction questions. You need to make sure that singular subjects have singular verbs and that plural subjects have plural verbs. If you're a native speaker, you probably follow this simple grammatical rule so automatically that you may wonder why the GMAT tests it at all. But the test makers craftily separate subject and verb with lots of text, to make it harder to recognize whether the subject and verb agree.
While taking the test, you should be on the look out for the following:
Answer: There are many good reasons. A good strategy is to ignore temporarily parts of the sentence that are set off by commas.
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