他们用新电脑替换了办公室里的旧设备。

They ___replaced the old equipment in the office with new computers.

用完工具后请把它们放回工具箱。

Please ___replace the tools in the toolbox after using them.

他们承诺会免费更换损坏的手机屏幕。

They promised to ___replace the broken phone screen for free.