I don't know 【-------】 he has received the packagewhen what 和how many when 理由理由呢?晕死我了谁能肯定些?

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I don't know 【-------】 he has received the packagewhen what 和how many when 理由理由呢?晕死我了谁能肯定些?
I don't know 【-------】 he has received the package
when what 和how many
when
理由理由呢?晕死我了
谁能肯定些?

I don't know 【-------】 he has received the packagewhen what 和how many when 理由理由呢?晕死我了谁能肯定些?
用IF,用when就不是完成时了
应该是when he received the package.
个人理解,仅供参考

if

答案是if

use if.

if 是否