我们知道这些谣言是假的。

We knew the rumours were ___untrue.

他们意识到，你广告中提到的几乎所有内容似乎都是假的。

They realized that almost everything mentioned in your advertisement appeared to be ___untrue.

这位历史学家认为，关于该事件的流行说法在很大程度上是虚假的。

The historian argued that the popular account of the event was largely ___untrue.