这将是一段漫长的旅程，所以如果你想上厕所，现在就去吧。

It's going to be a long journey, so if you want to ___go ___to ___the ___toilet, do so now.

昨晚我去上厕所时，把手表忘在你家了。

I left my watch at your house last night when I ___went ___to ___the ___toilet.

请原谅，我需要去上厕所。

Please excuse me, I need to ___go ___to ___the ___toilet.