which was后面加什么

如果which是疑问句的主语，后面应该用动词的单数第三人称形式；如果which在从句中做关系代词，后接动词形式与先行词一致。

例句

He dressed very smartly, which was important in those days.

他穿得非常整洁，这在当时很重要。

I rewrote his rough draft, which was published under my name.

我改写了他那篇以我的\'名义发表了的初稿。

We were in the same college, which was male-only at that time.

我们当时在同一所学院，那时还是男子学院。

Their house, which was solidly built, resisted the main shock.

他们的房子修建得很坚固，经受住了主震。

They entered the shop, which was a curious ramshackle building.

他们走进商店，那是一所奇怪、摇摇欲坠的房子。