MEGA Elementary Education Practice Test 2025 – Complete Preparation Guide

The sentence "One of the students are eating vanilla ice cream for dessert" contains an error in subject-verb agreement because the subject "One" is singular. In this context, "one" refers to a single individual out of a group (the students), which necessitates the use of a singular verb. Therefore, the correct form should be "One of the students is eating vanilla ice cream for dessert." This mistake occurs when the verb does not match the singular subject, leading to confusion in understanding who or what is performing the action in the sentence.

The other sentences correctly demonstrate subject-verb agreement. In each of those cases, the verb appropriately corresponds to the singular or plural subject, ensuring clarity and grammatical accuracy in the context of the sentences provided.