一名举报者向管理层秘密告发了这起财务欺诈。

A whistleblower ___tipped ___off the management about the financial fraud.

她决定在职位广告发布前，秘密告诉她的朋友这个工作机会。

She decided to ___tip her friend ___off about the job opening before it was advertised.

在股市崩盘前，一些投资者得到内部消息并抛售了股票。

Before the stock market crash, some investors were ___tipped ___off and sold their shares.