下面这两个句子哪个是正确的呀
问题描述：
下面这两个句子哪个是正确的呀
Computer models can be used to demonstrate the way which cells work in.
Computer models _can be used to demonstrate the way which cells work.
到底加不加in呀,谁能帮我解释一下?
答
要加,不过要加在前面：“in which cells work” .最后面就不用.