1. Corrected sentences with unnecessary words removed: A. Snow leopards and other rare animals are classified as endangered species. B. Bats and bears both hibernate in caves. (Correct as is, no unnecessary words) C. Either Jane or Rodney is walking to the store for more supplies. D. Salt or pepper is needed to give this dish more flavor. 2. Corrected sentences with unnecessary words removed: A. Neither video nor photographs capture every detail. B. This watch and that knife are made by Swiss craftsmen. (Correct as is, no unnecessary words) C. Neither leafy vegetables nor fruit is served with lunch today. D. In many countries, hotels and cafés have Internet access for customers.

Answer: 1. The sentence that uses a verb that agrees with its compound subject is B. "Bats and bears both hibernate in caves." 2. The sentence that uses a verb that agrees with its compound subject is A. "Neither video nor photographs captures every detail."

Extra: Subject-verb agreement is a grammatical rule in the English language which states that the verb in a sentence must agree in number with its subject. This means that if the subject is singular, the verb must also be singular, and if the subject is plural, the verb must be plural.

For example: - He runs every morning. (singular subject ‘He’, singular verb ‘runs’) - They run every morning. (plural subject ‘They’, plural verb ‘run’)

In sentences with a compound subject (when two subjects are connected by 'and'), the verb usually needs to be plural because the compound subject is considered plural.

For example: - The dog and the cat play together. (compound subject ‘The dog and the cat’, plural verb ‘play’)

However, there are exceptions when the compound subject is referring to a singular entity or idea, or when it is joined by 'or' or 'nor'. In these cases the verb agrees with the nearest subject.

For example: - Peanut butter and jelly is my favorite snack. ('Peanut butter and jelly' is considered a single entity, so we use the singular verb 'is'.) - Either the dog or the cats are to blame. ('Cats' is closer to the verb than 'dog', so we use the plural verb 'are'.)

In sentences that use "neither... nor" or "either... or", the subject closer to the verb determines the number of the verb. If the subject closer to the verb is singular, use a singular verb. If it's plural, use a plural verb.

In the examples given in the questions: 1. Option B has two plural subjects connected by 'and', hence a plural verb 'hibernate' is correct. 2. Option A has "neither... nor" connecting a singular subject 'video' and a plural subject 'photographs', but since 'video' is closer to the verb, a singular verb 'captures' is used.