Answer and explanation

Correct answer: B. will be lying

  1. Step 1: The future continuous describes an action in progress at a future time.
Answer
will be lying.
Why not the others: "would lie" is wrong because 'would' does not express a plain future. "are lying" is wrong because the present continuous does not fit the future time. "will have been lain" is wrong because the passive perfect form makes no sense for people lying.

Practise more Passives, gerunds, infinitives and modals.

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