Do you often travel on business with your______？A．acquaintancesB．collegesC．leaguesD．associ

How often to the dentist？A、you go toB、do youC、do you go

If you went ____ or traveled on business to another city or state, you would probably want to bring some traveler’s checks along with you.

听力原文：Today, air travel is far safer than driving a car on a busy motor way. But there

What can a travel agent do for you？A．Make your traveling process easier.B．Save you a lot o

How often（)to the dentist？A. you go toB. do you goC. do you

Do you often surf on the Internet？（).A. Yes. I surf on the Internet.B. Yes. I use it a l