---I counted sheep, I drank milk and I tried everything, but nothing helped.---It seems you ______ too much recently. Try some sleeping pills.A.workedB.will be workingC.had workedD.have been working
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D解析根据It seems you _____ too much recently.的谓语seems和时间状语recently可知从句的谓语动词要用现在完成时，且强调从过去到现在一直工作太累，所以可用现在完成进行时。所以选D。