in pen和with a pen

题目

in pen和with a pen
是不是说加了冠词就要用with?那么如果换作some ink 呢?可以算作用with 吗?这句话“Do you have any ink to write in?”（是正确的）可以参考,可以说就是“write in some ink”了吗?

答案

对,是write in some ink
而write with a pen是固定用法,你记住就行了