TOEFL Mini-test (Skills 1-5)

“Flows” is correct because the sentence describes a general fact, requiring simple present tense. The subject “river” is singular, so the verb must also be singular. Other options either add an unnecessary subject, use incorrect verb forms, or lack a proper verb structure.

“Can contain” is correct because the subject “a pride” is singular and requires a modal verb with base form. Other options either repeat the subject, use incorrect agreement, or lack proper verb structure. This ensures correct sentence completion.

“Is” is correct because the subject “any benefit” is singular and requires a singular verb. Other options either introduce extra subjects or are not verbs. Correct subject-verb agreement ensures clarity and grammatical correctness.

“Of ocean tides is” correctly completes the subject and provides the main verb. Other options either lack verbs or fail to connect the sentence logically. Proper structure ensures clarity in explaining cause and effect.

“Photography was” is correct because the sentence requires a subject followed by a verb. Other options either lack a subject or create incorrect structure. This ensures proper sentence completion with correct subject-verb order.

“A family of” is correct because it forms an appositive phrase describing “tetracyclines.” The sentence already contains a main verb, so no additional verb is needed. Other options introduce unnecessary verbs or incorrect structures.

“Became” is correct because the sentence needs a main verb, and the subject is already present. Other options include unnecessary conjunctions or repeated subjects, making them incorrect. Proper verb placement completes the sentence logically.

“The city of” correctly completes the subject before the verb “received.” The sentence already has a verb, so a subject phrase is needed. Other options either introduce unnecessary verbs or incomplete structures, making them grammatically incorrect.

“Airs” is correct because the subject “map” is singular and requires a singular verb in present tense. Other options use incorrect verb forms or lack proper tense. Correct verb usage ensures grammatical accuracy.

“The flowers of the” correctly forms a plural subject that matches the verb “are.” Other options fail to complete the subject properly or create mismatch in number. Proper subject formation is essential for grammatical accuracy.