炒黄金怎么做趋势单:初中英语

来源:百度文库 编辑:高考问答 时间:2024/05/05 10:06:55
What do you call this?
It's a stamp. It's used_______sending letters.
A,for
B,to
C,with
D,by
答案是A
be used to doing 是固定词组,为什么是be used for doing

be used to doing sth意为习惯于做某事
主语是邮票,该句介绍的是用途,而不是习惯做什么。