From the words lettered A to D, choose the word that best completes each of the following sentences. By the time school opens, I....... here for eight weeks...

From the words lettered A to D, choose the word that best completes each of the following sentences.
By the time school opens, I....... here for eight weeks.

Answer Details

The sentence is in the future tense and indicates an action that will be completed before the school opens. The appropriate word that best completes the sentence is "will have worked."