There are only two main streets which cross in the middle of the town为什么可以用which为什么可以用which啊,前面不是有only的么
问题描述：
There are only two main streets which cross in the middle of the town为什么可以用which
为什么可以用which啊,前面不是有only的么
答
因为there be结构
答
only修饰动词are，而不是修饰先行词two main streets。
答
the only修饰多用which,但也不绝对