我今晚很想出去，但问题是，我得完成我的报告。

I'd love to go out tonight, but ___the ___thing ___is, I've got to finish my report.

问题是，在7月23日那天我还没找到任何适合我的衣服。

___The ___thing ___is that on July 23rd I had not found any outfit that suited me yet.

问题是，我们明天需要早点离开。

___The ___thing ___is, we need to leave early tomorrow.