She _ (work) in the factory for fifteen years by next year.
Correct answer: C. Will have been working
- A. Will work
- B. Will be working
- C. Will have been working
- D. Had worked
Explanation
The sentence is in the present continuous tense. As both present and future are being acknowledged, the missing word should be in continuous present tense. 'Will work' is in the future tense hence incorrect, 'will be working' is future continuous which is incorrect. 'Had worked' is past tense hence incorrect. "Will have been working", hence is correct.
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