Question

Fill in the blank with a suitable option:
Long before you return _____________________.

• A. Everybody has already left
• B. We'd be sold out of your size
• C. She will have forgotten you
• D. I'd finished all the work

Answer 1

The correct option is C She will have forgotten you

Option C is the correct answer. The sentence speaks about an event to be taking place in the future. Thus, the verb in the second part of the sentence needs to be in the future tense. The statement s of options A,B and D are all in the past tense. Therefore, they are all incorrect.