当她看到生日礼物时，兴奋地发出了"哇哦"的欢呼声。

She let out an ___ooh-ooh of excitement when she saw the birthday present.

当我假装是只猴子时，孩子们都开始跟着学我发出呜呜的声音。

The kids all started ___ooh-oohing along when I pretended to be a monkey.