17．_________all of them are fit for the job，only one will be chosen for the position．（　�。�
A．ForB．WhileC．IfD．When

分析 雖然他們所有人都適合這份工作，只有一個人被選中擔任這個職位．

解答 答案是B．本題考查從屬連詞辨析．for因為；while雖然；if 如果；when當…時候；根據(jù)語境，題干中表示讓步"雖然"，故選B．

點評 首先要理解連詞的功能：并列連詞連接并列的詞、短語或句子；從屬連詞連接主從句；其次理解各連詞含義；最后結(jié)合語境做出判斷．

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