先通读短文，然后根据短文内容，选择适当的单词填空，使短文意思完整。
In recent years, studying Chinese in China has become popular with foreigners. Some Chinese classroom manners are______ from western classroom manners. It might be a good idea to know something about these ______ you take a Chinese class.
Being respectful (尊重的)
Students in China respect their teachers very much. When ______ your teacher, you should always use your teacher’s surname (姓), followed by "laoshi" to call him or her. So______ your teacher’s surname is Shu, you should call her "Shu laoshi".
Being on time
Being on time is ______ for Chinese students. Being at your desk before the bell rings is ______ you need to do in a Chinese classroom.
Listening, not talking
In China, teachers talk and students listen. Students ______ to ask questions, but most Chinese students are too ______ to open their mouth in class. So sometimes the teacher needs to ask somebody to answer questions.
When studying Chinese in China, you will soon learn that it’s ______ hard work. You need to write the Chinese characters (汉字) and ______ your reading, speaking and listening. If you try your best, you will make it! 

A．helpful B．typical C．different D．the same

A．before B．after C．since D．where

A．helping B．remembering C．visiting D．speaking to

A．if B．who C．until D．though

A．nice B．important C．relaxed D．pleasant

A．when B．that C．what D．how

A．are refused B．are allowed C．are prevented D．are offered

A．shy B．proud C．full D．safe

A．hardly B．gradually C．really D．possibly

A．describe B．point C．trouble D．practice