Compared to illegal workers, guest workersA．are more likely to stay.B．tend to return to ho

听力原文：Narrator Now get ready to answer the questions. Professor Hello, class. I gue

What will happen to the workers if the machines are painted gray compared with orange？A．Wo

Some illegal traders care about nothing but .A、to make moneyB、making moneyC、made money

Why did Central American children try to enter U. S. illegally？A．Because they wanted to ge

Najibullah Zazi was arrested becauseA．he immigrated to the United States illegally.B．he us

According to Obamas 2011 blueprint, how long would it take for illegal immigrants to gain