— I’ve taken someone else’s green sweater by mistake.
— It ______ Harry’s. He always wears green.
A．has to beB．will beC．mustn’t beD．could be
D
本題考查情態(tài)動詞的用法。句意是“我錯拿了別人的綠色毛衣”，“那可能是Harry的，他總是穿綠色的毛衣”。四個選項中could表示推測。mustn’t 表示 “禁止”；has to 表示“不得不”；will 表推測時，表“肯定“語氣太強。
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