我只希望你知道自己在做什么。

___I ___only ___hope you know what you're doing.

我只希望他们能更经常地保持联系。

___I ___only ___wish ___that they would keep in touch more regularly.

我只希望我也能有機會見到她。

___I ___only ___hope I can have the chance to see her too.