17．___ is left over may be put into the refrigerator，____ it will keep for two or three weeks．（　�。�
A．Whoever； whenB．Whenever； which
C．Whatever； whereD．Whichever； while

分析 無論什么剩下的東西都應(yīng)該被放進(jìn)冰箱，它將會保鮮兩到三周．

解答 答案：C．根據(jù)may be put into the refrigerator可知前面是主語從句，再結(jié)合句意，無論什么剩下的東西，選whatever，后面是個(gè)定語從句，先行詞refrigerator，在定語從句中作地點(diǎn)狀語，因此第二空填where，故選C．

點(diǎn)評 本題考查疑問詞加ever 的主語從句及定語從句，在熟知疑問詞加ever 無論…，基本上，很容易選出此題答案．

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