你刚才说的是什么？我没听清楚。

What ___did you just say? I missed it.

有趣的是，他居然在这么短的时间内完成了任务。

The funny thing is ___that he finished the task in such a short time.

哇，那个小男孩竟然能弹奏这么难的曲子！

What ___a little boy can play such a difficult piece!