_____ is my favorite color. [ ]
A. Red
B. Mr Green
C. Mrs Brown
D. Linda
A
—I'm happy to be here for my six-month English course.
—_______. Call me if you have any trouble. [ ]
A. Help yourself
B. Thanks a lot
C. Be careful
D. Enjoy your stay
干粉灭火剂的适用范围是什么？
