单项选择题
A. No, I didn’t B. How about Monday C. I had a very nice weekend D. What about you E. Sort of F. I feel tired today G. That sounds like a fun H. I bet you studied
A．They are not useful. B．They foster unnecessary competition. C．They should be optional. D．They are currently in use.
A．ridiculous B．memorable C．unforgivable D．unexplainable