问题补充：
Yesterday I really enjoyed myself but today it’s raining and cold whata day makes!
A. difference
B. a difference
C. different
D. a different
答案：
A. difference
(答案→)B. a difference
C. different
D. a different
解析：句意：昨天我玩的很开心但是今天却在下雨而且很冷。一天的时间造成的差别是如此之大啊！difference意为“差异”，为可数名词；此句考查感叹句型：what a +n +主语+谓语！故答案为B。.
