请问The girl over there ____ a mask is Helen. 应填 in 还是with

我个人认为用 with。谨慎使用。

用with
with后面一般接的是个人特征、所穿的衣服、所带的配饰如眼镜、帽子等
in后面一般接的是颜色
例：The girl with red hair is my sister.
The man with a big sun-glasses is my uncle.
Do you see a boy in blue?
(表示状态)处于…之中, 在…情况下,也可以用in
如:
Martin was in his pyjamas.
马丁穿着睡衣。

“带有……”、“长着……”用介词with
I'd like to have a cake with lots of grapes.我想要一个有许多葡萄的蛋糕。
Do you know the man with a book in his hand?你认识那个手里拿着书的男人吗？
The girl with big eyes is my sister.那个大眼镜的女孩是我的妹妹。

<P>谢谢</P>
<P>&nbsp;</P>

应该用in  与in a hat 类似. with 是带着....长着(五官等身体特征)....