【简答题】阅读理解。 Christmas (圣诞节) is December 25. It's the most important holiday in America. People like to send Christmas cards to their friends and they buy gifts for their family and friends before Christmas....
【单选题】听力原文:Dr. Green is a pediatric dentist. Most of his patients are children. Children like to come to his office. He tells them about their teeth. He cleans their teeth well. He also takes care of their ...
【单选题】The same gestures, signs and so on, in other words, body language, may express different ideas or meanings in different cultures, so don't use them _______ you are definitely sure of what they mean so...