Prof. Massood ____________________ for 30 years by the time he retires...
To solve this question, we need to determine the correct verb form to complete the sentence. Let's analyze the given options:
A:
will have been teaching
B:
will been teaching
C:
will have teaching
D:
will have been taught
Out of these options, the correct answer is A:
will have been teaching.
Here's why:
- Option A:
will have been teaching - This is the correct answer. It uses the future perfect continuous tense, which is appropriate for an action that will be ongoing until a specific point in the future (in this case, when Prof. Massood retires).
- Option B:
will been teaching - This option is grammatically incorrect. The verb "been" should be preceded by the auxiliary verb "have" to form the correct tense.
- Option C:
will have teaching - This option is also grammatically incorrect. The verb "teaching" should be in the present participle form (-ing) to form the correct tense.
- Option D:
will have been taught - This option is in the passive voice, which is incorrect because the sentence is referring to Prof. Massood as the subject who is doing the teaching, not as the object being taught.
In conclusion, the correct verb form to complete the sentence is A:
will have been teaching.