_______ weather it is, we shall set out on time.
A．Whatever B．However C．Whenever D．Whether
A
【解析】
試題分析：考察讓步狀語從句。“No matter+特殊疑問句”只能引導讓步狀語從句；“特殊疑問句+ever”既可以引導讓步狀語從句，也可以引導名詞性從句；本句中的whatever weather it is是一個讓步狀語從句。Whatever后面引導的是名詞或者代詞。However后面接的是形容詞或者副詞。句意：無論是什么天氣，我們都會準時出發。B項不符合語法，CD兩項與上下文的含義不相符。故A正確。
考點：考察讓步狀語從句
點評：本題的讓步狀語從句考察的是“No matter+特殊疑問句”的引導方式。該結構既可以引導讓步狀語從句，也可以引導名詞性從句；要根據上下文的含義來選擇合適的特殊疑問詞的形式。
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