Identify the type of sentence: 'The sky is blue, and the grass is green.'

Correct Answer: B

Rationale: The correct answer is B, compound sentence. This sentence consists of two independent clauses ('The sky is blue' and 'the grass is green') that are joined by the coordinating conjunction 'and.' A simple sentence contains a single independent clause. In contrast, a complex sentence has one independent clause and at least one dependent clause. A compound-complex sentence consists of multiple independent clauses and at least one dependent clause, which are not present in the given sentence, making choices A, C, and D incorrect.

Correct Answer: C

Rationale: The correct plural of 'century' is 'centuries'. In English, to form the plural of most nouns ending in -y, you change the -y to -ies. Choice A, 'Centurys', is incorrect because it does not follow this rule. Choice B, 'Centures', is also incorrect as it does not provide the correct plural form. Choice D, 'Centuryies', is a completely incorrect and non-standard plural form of 'century'. Therefore, the correct answer is 'Centuries'.

Correct Answer: D

Rationale: In the given sentence, the words that should be capitalized are 'She,' 'do,' and 'Indian.' 'She' needs to be capitalized as it is the pronoun referring to a person, 'do' should be capitalized as it is the beginning of a question, and 'Indian' should be capitalized as it refers to a specific nationality or culture. Choice A is incorrect as 'do' is missing. Choice B is incorrect as 'Indian' is not capitalized. Choice C is incorrect as 'Indian' is not capitalized. Therefore, the correct answer is D.

Correct Answer: A

Rationale: The correct answer is A. The sentence is missing quotation marks around 'When is the assignment due?'. Quotation marks are essential to indicate that the words enclosed are being directly quoted. Choice B is incorrect because a semicolon is not needed in this context. Choice C is incorrect as a comma is already present after 'He asked' to separate the introductory clause. Choice D is incorrect because the sentence does lack proper punctuation, which are the quotation marks.

Correct Answer: D

Rationale: The correct plural form of the noun 'class' is 'classes.' When forming the plural of 'class,' you add 'es' to the singular form. Choices A, B, and C do not correctly represent the plural form of 'class' and are therefore incorrect. Choice A is the singular form, choice B is incorrect as it includes an apostrophe, and choice C shows possession which is not required for pluralization.