as is often the case …

结构︰

as／which is often the case (with) …

说明︰

此句型意为“…是常有的情形”。这是当<关系代名词>的 as 以全体<主要子句>当先行词的<句型>，可以用 which 代替 as。

He was late for school, as (which) was often the case with him.
他上学迟到，但这对他而言已是家常便饭了。
As is often the case with old people, my grandfather is fond of talking about good old days.
就像其他老人一样，我祖父也老喜欢讲他当年的故事。
He quarreled with his friends, as was the often the case.
他和朋友吵架，但这已屡见不鲜。