我分别和他们所有人谈了话。

I spoke to them all ___individually.

这些糖果是单独包装的。

The sweets are ___individually wrapped.

这有一个额外的好处，学生可以单独学习对他们来说似乎最必要的东西。

This has the additional advantage that students can work ___individually on what seems to be most necessary for them.