Although all of the apples , none of them good.
A. have been tasted; taste
B. have been tasted; are tasted
C. have tasted; taste
D. have tasted; are tasted
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(答案→)A. have been tasted; taste
B. have been tasted; are tasted
C. have tasted; taste
D. have tasted; are tasted
解析：考查语态与系动词用法。第一空的taste表示品尝，与apples构成被动关系，使用被动语态。第二空的taste是系动词，与形容词连用构成系表结构。句意：尽管所有的苹果都被品尝了，但是没有一个尝起来味道好。