单项选择题
I was trying to ________ him __________, but failed because he didn’t fit into any type I knew.
单项选择题 We are not _______ trouble when the factory opens again.
未知题型 我国茶区分布中最北面的是()茶区。
未知题型 请写出四个知名的中国红茶()、()、()、()。