What _____!Where did you get them?A big fish B a big fish .C a piece of big fish D big a fish

What _____!Where did you get them?A big fish B a big fish .C a piece of big fish D big a fish

答案选A.
本题考查感叹句和fish的复数.
从后面的them看前面提到的鱼应该是复数的.
fish的复数有两种,fish（几条）和fishes（种类）.另外,fish作鱼肉讲为物质名词,是不可数名词.

A
好大的鱼