14．If the wound    become swollen，do not hesitate to call me．（　　）
A．shallB．mustC．shouldD．would

分析 傷口萬一腫脹的話，一定要立即給我打電話．

解答 答案C．
shall用于第二、三人稱的肯定句中表示允諾、警告等強烈的語氣；must"必須，一定"；should"（表示語氣較強的假設）萬一，竟然"；would指"過去總是，過去習慣于"．在本題should表可能性，是"萬一"之意，故用should．故選答案C．

點評 本題考查情態(tài)動詞的用法．在掌握情態(tài)動詞的基本含義的時候，還要掌握一些情態(tài)動詞的特殊含義．如：must表示與說話人愿望相反及不耐煩，含義為偏要、硬要．would+動詞原形表示過去的習慣或某種傾向．shall用于第二人稱和第三人稱表示建議，允諾，命令，威脅等．should表示驚訝時，意思是"竟然"，should還有"萬一、竟然"之意．

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