The conjunction used in this sentence (“and”) does not match the logic of the sentence's content. The two parts oppose each other, so “but” is more appropriate. The corrected sentence reads, "Traveling during the holidays can be expensive, but it is worth it to celebrate with your family."

The conjunction that this sentence uses does not make logical sense. The first half is the reasoning for the second half, so the conjunction “so” would be more appropriate. The corrected sentence reads, "The weather should be beautiful on Friday, so Barbara has made plans to go hiking."

This sentence contains a redundancy error. The conjunctions "but" and "yet" are synonyms; they mean the same thing, so only one or the other is necessary to convey the intended meaning of the sentence.

The answer choice "sold" is correct because it contains the simple past tense, which is correct for events that happened in the past and don't continue into the present.

The answer choice "greatest" is correct because it uses the superlative form (the "-est" form) of the adjective great, which is appropriate for comparisons involving more than two items.

The answer choice "of all time" is a perfectly correct use of an idiomatic expression.

This sentence has a clunky dependent clause tacked on the end. We can make it sound better by taking out some words and making it an appositive phrase: "Defying all expectations, the space shuttle reentered the atmosphere at 3:57, three whole minutes ahead of schedule." Or, alternatively, one could also change "that was" to "which was," but one introduce a phrase that provides additional information about a subject and follows a comma with "that"; one should use "which" instead in this instance.

This sentence contains a logical error. The long line was the cause of missing the start of the movie, so the use of a contrasting conjunction like "although" here is wrong. Replacing it with "Because" or "Since" would be a simple correction.

This sentence is a fragment, because it does not have a main verb. Changing the noun phrase “the audience’s worry” to a noun and verb fixes this nicely: "In particular, the audience worried that the vicious dogs might bite."

This sentence is a run-on. There are two independent clauses separated only by a comma. Change that comma to a semicolon to fix the problem: "Paul was frustrated because his phone was not working; service was inconsistent."

This sentence has a comma splice. This is when two independent clauses (clauses which can stand on their own as complete sentences) are separated only by a comma. A semicolon works well here. The corrected sentence reads, "The museum is hosting a Georgia O'Keefe exhibit until January; we should go this weekend."

This sentence is not coordinated correctly. The first clause explains why something is happening, so it shouldn’t be connected to the main clause with an “and.” The corrected sentence reads, "Due to global temperature increases, the polar ice cap is melting at an alarming rate."

This sentence is a fragment because it does not have a subject. Instead of starting out with the gerund ("-ing" verb used as a noun) “enjoying,” we need a subject and a verb that agrees with it. One example of how to correct this sentence would be, "I enjoy the sensation of standing in the warm rain and listening to it hit the pavement."