题目内容

He _______ English for four years before he went abroad.
A．has studiedB．was studying
C．has been studyingD．had been studying
D

试题分析：考查时态。根据句意：在他出国之前已经学习了四年的英语。可知，学英语的动作发生在出国之前，而且现在出国依然在学，因此用过去完成进行时。所以答案选D。
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