Understanding the cultural habits of another nation, especially ____________ containing as many different subcultures as the United States, is very difficult.
(届四川省苍溪中学高三下学期月考)
---Dad, I am too tired and feel too much pressure on my mind
---Come on! That’s the life of Senior Three, but if you are admitted to a key University, you ____get an Iphone 5s as a gift.