This sentence contains a semicolon where a comma should be. The phrase "After exercising" is an example of an introductory phrase, explaining information necessary to the context of the sentence, but outside of the main sentence, grammatically. These types of phrases must be followed by a comma in order to separate them from the rest of the sentence. The correct answer choice is, "After exercising, she drank."

This sentence contains a semicolon where a comma is necessary. Semicolons are used to join two independent clauses without a conjunction. The phrase "Whenever she completed a task" is not, however, an independent clause; it is an example of an introductory phrase, explaining information necessary to the context of the sentence, but outside of the main sentence, grammatically. These types of phrases must be followed by a comma in order to separate them from the rest of the sentence. The correct answer choice is, "Whenever she completed a task; she hit a bell on her desk."

When using a conjunctive adjective to join two independent clauses, one should use a semicolon before the conjunctive adverb (in this case "however") and a comma after the conjunctive adverb, in this case "however".

Using the word "however" to join two independent clauses requires the use of a semicolon and a comma. In this case, "however" is not functioning as a conjunctive adverb. It is simply an adverb modifying the word "challenging." Because the modifier  "however challenging" interrupts the independent clause, it is best to set it between commas.

The central issue here is how to effectively combine these two independent statements. Because the clauses do not contrast in meaning, using the conjunction but or the conjunctive adverb however after the semi-colon is inappropriate. However, using a semi-colon to join two independent clauses that are closely related is totally acceptable. Using a comma alone would result in a comma splice error. The correct answer simply implements a semi-colon.

This sentence contains an error in the usage of the semicolon. Semicolons are used in order to join two independent clauses without the use of a conjunction. The phrase "He regarded the award" is independent, but "as the most prestigious in his field" is not. The semicolon should be omitted as no punctuation in necessary. The correct choice is, "He regarded the award as the most."

This sentence is a simple sentence and is not in need of any punctuation. Semicolons are used in order to separate two related independent clauses when no conjunction is present. This is not the case in this sentence, however. The correct choice is to omit all punctuation. The answer is, "English language have more than one meaning."

This sentence does not contain a semicolon where necessary. The words "months" and "she" represent the end of one independent clause and the beginning of another. In order to join two related independent clauses without a conjunction, a semicolon should be used. Note that a colon would not be appropriate because, while related, the second clause does not explain anything about/in the first clause. The correct choice is, "a few months; she planned to."

A semicolon separates two independent clauses in one sentence. Also, it is used before introductory words such as "that is" and "for example." The introductory phrase introduces a complete sentence/independent clause with a comma following the introductory phrase.

The sentence is correctly punctuated. The semicolon separates two independent clauses in the absence of a conjunction.