I'v got a toothache. I'm going to the____.
A. park B. dentist C. teacher
（）你指着自己的照片对同学说:
A. This is my sister. B. This is me. C. I’m Sam.
（）当你晚上遇见到朋友时，你可以说：
A. Good morning. B. Goodbye. C. Good evening.
（）你向别人介绍你的朋友，你会说：
A. This is my family. B. This is my father. C. This is my friend.
（）开学了，老师叫刘涛在班级自我介绍，他应该说：
A. I’m Liu Tao. B. This is Liu Tao. C. Are you Liu Tao?
（）当你向别人介绍自己的父亲时，你说：
A. This is my brother. B. This is my father. C. This is my friend.