The punctuation mark that can be used to fix the grammatical errors is apostrophe (').
What are grammatical errors?
Grammatical errors are those errors that are found in sentences that are not properly constructed due to poor usage of punctuation marks for instance.
From passage, the grammatical errors were notice in the following word's picked at random:
- are, but : There should be no comma between these two words.
- Cant: There should be apostrophe mark between n and t.
- Lets: There should be apostrophe mark between t and s.
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