【单选题】【消耗次数:1】
--Ifhe_____thatthemushroomwaspoisonous,he_____it.--Luckilyhewassenttothehospitalimmediately.
waswarned,wouldnoteat
hadbeenwarned,wouldnothaveeaten
wouldbewarned,hadnoteaten
wouldhavebeenwarned,hadnoteaten
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