两道英语题,不明白为什么这样填?!1.There is __an___"r"and___a___"d" in the word "door"2.Jack has __a___useful book.__The___book is also very interesting.不明白! "r"又不是元音字母.为什么用"an"? "useful book"的"u"是原因
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 19:51:44
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