我不知道那个东西叫什么。

I don't know what that ___thing is called.

周末最棒的事情是和家人一起野餐。

The best ___thing about weekends is having a picnic with family.

奇怪的是，他居然没有提前告诉我们这件事。

The strange ___thing is, he didn't tell us about it in advance.

可怜的小家伙，它迷路了。

Poor ___thing, it got lost.

最重要的事情是要保持积极的态度。

The main ___thing is to stay positive.