他买了一束花送给她作为生日礼物。

He bought a bouquet of flowers ___for her birthday present.

这些花是送给妈妈的。

These flowers are ___for mom.

我们在这个城市住了五年。

We have lived in this city ___for five years.

我们都支持这个新计划。

We're all ___for this new plan.

我用旧手机换了一台新平板。

I exchanged my old phone ___for a new tablet.