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Read the party host's complaint: "The guests brought their own instruments, so the DJ I paid for just sat there all night."
Select ALL the sentences that logically and grammatically follow this situation.
The correct answers are I needn't have hired a DJ. and I didn't need to hire a DJ, though I already had.
The context shows the DJ was hired (the action was performed) but it was completely unnecessary. Needn't have hired captures this perfectly on its own.
Didn't need to hire works here because the second clause ("though I already had") clarifies that the action was indeed done. The option about saving money contradicts the story, and "needn't hire" is in the present/future tense!