它在主人面前表现得非常乖巧。

It behaves very ___well in front of its owner.

这口井位于沙漠中

This ___well is located in the desert.

他在考试中表现得很好。

He did ___well on the exam.

他对这个课题研究得相当深入。

He has studied this topic ___well beyond the basics.

她最近看起来很不错。

She looks very ___good recently.

这个村庄的井水非常清澈甘甜。

The water from this village's ___well is very clear and sweet.