C. Will have been washing
D. Will have washed
Correct Answer: C. Will have been washing
Detail about MCQs
The correct answer would be: C. Will have been washing
This sentence requires the use of the future perfect continuous tense, which is used to describe an ongoing action that will be completed in the future before a specified time or event. In this case, the sentence suggests that she will continue washing clothes for a duration of two hours in the future.
The correct form of the verb to use in this context is “will have been washing.” This form indicates that the action of washing will start in the future and continue for a specific duration (two hours) until a specified time or event.