I ___my CD here and there ,but I still cannot find it.为什么只能填 have looked for 不能填 was looking for?

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I ___my CD here and there ,but I still cannot find it.为什么只能填 have looked for 不能填 was looking for?
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I ___my CD here and there ,but I still cannot find it.为什么只能填 have looked for 不能填 was looking for?
I ___my CD here and there ,but I still cannot find it.
为什么只能填 have looked for 不能填 was looking for?

I ___my CD here and there ,but I still cannot find it.为什么只能填 have looked for 不能填 was looking for?
现在完成时,表现过去发生的事对现在仍有影响.
过去进行时只是发生在过去特定一段时间,对现在没有影响.
题目中说是现在还找不到说明对现在仍有影响应该用现在完成时.

因为后面分句强调现在的结果,前面应该用完成时态。

时态不对 而且现在有结果了说明已经找完了