既然公交车还没来，我们不妨走回家。

Since the bus isn't coming, we ___might ___as ___well walk home.

人都到齐了，我们干脆开始吧。

Everyone is here, so we ___might ___as ___well get started.

既然想不出更好的办法，我们不妨先试试这个方案。

Since we can't think of a better option, we ___might ___as ___well give this plan a try first.