我的老板总是在监督我。

My boss is always ___checking ___up ___on me.

你能核实一下我申请的进展吗？

Could you ___check ___on the progress of my application?

她雇了一名私家侦探来调查她的商业伙伴。

She hired a private investigator to ___check ___up ___on her business partner.