up to now造句

Up to now the post of president has been largely ceremonial.
到目前为止，总统一职在很大程度上只是礼仪性的。

I'd like to know what caper he is up to now.
我倒想知道他现在又在玩什么鬼把戏了.

Up to now he's still quiet.
他直到现在仍保持沉默.