Question 15

Our math teacher claimed that calculus, despite its complexities, was as easy as any other subject.

The sentence should use "was" to agree with the singular subject "calculus." This ensures grammatical accuracy in the context of the sentence.

A) were as

Using "were" is incorrect in this context because it is a plural verb form, which does not agree with the singular noun "calculus." The proper verb form should reflect the singular nature of the subject.

B) was as

This option is correct because "was" appropriately agrees with the singular noun "calculus." It maintains grammatical consistency in the sentence, thereby enhancing clarity and correctness.

C) is to be

The phrase "is to be" introduces a future or conditional aspect that is not relevant to the statement being made. The original intent of the sentence is to indicate a past claim, making this option incorrect.

D) to be

This option fails to provide a complete verb structure necessary for the sentence, rendering it grammatically incomplete. It does not correctly express the intended meaning about the math teacher's claim.

Conclusion

The correct answer, "was as," is the only option that maintains grammatical agreement with the singular subject "calculus." All other options either introduce errors in verb agreement or do not fulfill the grammatical requirements of the sentence. Thus, "was as" correctly conveys the teacher's claim about the ease of calculus.