我不想让你担心，但他现在真的应该在这里了。

I don't want to ___alarm you but he really should be here by now.

最让我们震惊的是作者大胆使用推测。

What ___alarmed us the most was the daring use of speculation by the author.

突如其来的新闻报道让公众对潜在危机感到担忧。

The sudden news report ___alarmed the public about the potential crisis.