Write it ________ pen.Write it ________ a pen.Write it _______ a pen and blue ink.
问题描述:
Write it ________ pen.Write it ________ a pen.Write it _______ a pen and blue ink.
,with ,with为什么?
答
第一个pen表泛指,所以用in,后面加上a以后就变成了特指,用with