So you're determined to turn this party into a funeral?你决定把派对变成场葬礼吗

turn into（使）变成

The whole thing turned into a bitter quarrel.

整件事酿成了激烈的争吵。

It does mean I won't be able to make it所以今晚我不能参加

be able to会； 能

I may be able to help you in some way.

我也许可以从某个方面去帮助你。

He was able to cast off such an uninteresting task.

他终于摆脱了这么一项乏味的工作。

Maybe I'm not supposed to hear from her.或许我不就该联络她

be supposed to猜想会； 应该

The show is supposed to be good.

这场表演应当是相当好的。

Is this squiggle supposed to be a signature?

这歪歪扭扭的玩意儿就算是签名吗?