Every country has its own culture. Even though each country uses doors. Doors many have_ __functions and purposes which lead to ___  _ differences. When I first came to America, I noticed that a public building had two different __  ___ and they had distinct(不同的) functions. You have to push the door with the word “PUSH” to go out of the building and to pull the door with the word “PULL” to _   ____ the building. This was new to me, because we use the _ __  __ door in south Korea. For quite a few times I failed to go out of a shopping centre and was embarrassed. The way of using school bus doors was also _ ___  __ to me .I used to take the school bus to classes. The school decided that when the driver opened both the front and back doors, ___    _ who were getting off the bus should get off first, and students who were getting on should get on __   _ . In South Korea, we do not need to wait for people to get off. One morning, I hurried to the bus, and when the bus doors opened, I_ __   ___ _tried to get on the school bus through the front door. All the students around looked at me, I was totally _     _ ,and my face went red. 小题1: A．different B．important C．practical D．unusual 小题2: A．national B．embarrassing C．cultural D．amazing 小题3: A．exits B．entrances C．signs D．doors 小题4: A．enter B．leave C．open D．close 小题5: A．main B．same C．front D．back 小题6: A．annoying B．hard C．satisfying D．strange 小题7: A．parents B．students C．teachers D．drivers 小题8: A．sooner B．later C．faster D．earlier 小题9: A．politely B．patiently C．unconsciously D．slowly 小题10: A．embarrassed B．annoyed C．unsatisfied D．excited