她是真的难过还是只是在假装？

Was she really upset or was that just an ___act?

为游客展示的文化表演常常只是一种做作的行为。

The cultural display for tourists is often just an ___act.

他热情的支持原来不过是装出来的。

His enthusiastic support turned out to be nothing more than an ___act.