—Do you know the mission of the volunteers?
—No. But I think _____ they will end up doing there will promote public awareness of environmental protection.
A．thatB．no matter whatC．whateverD．whether
C

試題分析：考查主語從句。Whatever引導主語從句，并在句中做doing的賓語。AC兩項不能做doing的賓語；no matter what不能引導主語從句。句意：我認為我們最后做的任何事情都會提高人們的環(huán)境保護意識。故C正確。
點評：主語從句的考查仍然是以陳述語序和連接詞的語義辨析為主。
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