Jack and John __________ helpful. A be B have been C was D has been
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Jack and John have been helpful. This is a correct sentence.
What is a grammatically correct sentence?
- A sentence that has no spelling mistakes or errors is called a correct sentence.
- It should be error-free.
- The sentence should be in compliance with the subject-verb agreement.
- According to subject-verb agreement, the correct helping verb is 'have been'.
- As the subject is plural, the verb should also be plural.
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Answer:
be
Explanation:
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