an unique 还是 a unique
我突然就蒙了,就是做一道语法改错题,
38.The Everglades,a large swamp (area) is （an) unique (wilderness) extending over (much) of southern Florida.
B错了,因为unique是辅音开头,改成a,然后我就闷了,突然有一种多年来英语白学了的感觉,麻烦各位帮我看看