Why do most immigrants come to the United States?

Why is the United States called a nation of immigrants? Why do you want go to the United States for further study?问为 Why do you choose to study in United States? In the United States ,most people try to save time . go to United States 还是go to the United States 把复合句改成简单句,1.Being a country of immigrants,the United States 英语翻译1.In the United States,immigrants fall into several cate Just to come to the United States,it is hard for me to let p 英语选择并翻译Most of the artists will go to the United States next Do you know the United States,where 英语翻译Most families in the United States tend to be very busy 英语翻译Most dogs in the United States seem to have an easy life