Question

【题目】That is a apple.

Answer 1

【答案】a错误， 改为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。而名词apple是以元音a开头，而且a是发元音音素，所以答案是a错误， 改为an。