单项选择题
A．people get hungrier every year B．the population of the world is growing C．there are too many unemployed farmers D．people do not like the food now produced
A．differed B．confused C．changed D．mixed
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