Question

【题目】It's ________(a ) animal.

Answer 1

【答案】an

【解析】a用在以辅音发音开头,或以读做辅音的元音字母开头的单词前面；an用在以元音发音（a,e,i,o,u）开头,或以不发音的h字母开头的单词前面；故填an。