buy sth for sb等于()()sth sb
问题描述：
buy sth for sb等于()()sth sb
I bought this book 5 years ago.
I ________ ________ this book for 5 years .
答
buy sth for sb = buy sb.sth.
答案：have hadhave had是什么意思呢？buy 是瞬间动词，瞬间动词不能与一段时间连用，所以这里将bought 改为了 had，have had 表示：已经买了...