The series of TV programs that has just finished ______ very useful.a.areb.weren’tc.wasn’td.were

To choose the correct answer for the sentence "The series of TV programs that has just finished ______ very useful," we need to pay attention to subject-verb agreement and the context of the sentence.

1. Identify the Subject: The subject of the sentence is "The series of TV programs," which can be categorized as a singular subject because the word "series" is singular, even though it refers to multiple programs.

2. Identify the Verb Tense: The clause “that has just finished” is in the present perfect tense, which indicates that we need a singular verb form to match the singular subject.

3. Analyze the Options:

   • a. are: This is plural and does not match the singular subject.
   • b. weren’t: This is also a plural past tense verb, not suitable here.
   • c. wasn’t: This is a singular form in the past tense and fits the subject.
   • d. were: This is plural and does not match the singular subject.

4. Select the Best Option: The correct answer, considering the singular subject and overall context, is option c. wasn’t.

Final Answer

The series of TV programs that has just finished wasn’t very useful.