6.

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

Before the underlined part, it is a complete sentence, followed by an accompanying adverbial: patrons paying their tickets... so you must use an independent nominative case.

Independent nominative format: SVO, (with)+noun/pronoun+doing/done/to do/adjective/adverb/prepositional phrase.

Item F is wrong: along with is used as a prepositional phrase, which means that "with...together" is semantically unreasonable.

Item G is wrong: as well as means "the same as..." semantic error.

Item J is wrong: so is used as a conjunction and adverb, and cannot be connected with the following adverbial here.