You ______ be hungry already — you had lunch only two hours ago!
A．wouldn’tB．can’tC．mustn’tD．needn’t
B
本題考查的是對現(xiàn)在情況的否定推測。表示對現(xiàn)在的肯定推測，常用must be來表示，表示對現(xiàn)在的否定推測，常用can’t be來表示。本句的意思是：你不可能餓了---你兩小時前才吃午飯呢！A項(xiàng)表示“（過去）將來不”，C項(xiàng)mustn’t表示禁止“不準(zhǔn)”，D項(xiàng)needn’t表示“不必，不需要”。
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