Sagot :
Can I park here only for half an hour would be the correct sentence.
What is a sentence?
A sentence is the basic unit of language which expresses a complete thought. It does this by following the grammatical basic rules of syntax. For example:"Ali is walking". A complete sentence has at least a subject and a main verb to state (declare) a complete thought. It is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate.
Therefore, (C) option is the correct answer.
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