总部的邮件发过来了吗？

Did the email from the head office ever ___come ___through?

一旦官方批文下达，我们就可以启动这个项目了。

Once the official approval ___comes ___through, we can start the project.

日内瓦研究团队的结果还没有传过来。

Results from the research team in Geneva still haven't ___come ___through.