将下列单词按照划线部分的发音进行归类。 of, her, son, card, bus, first, father, girl, color, hello 1

题型：同步题难度：来源：

将下列单词按照划线部分的发音进行归类。 of, her, son, card, bus, first, father, girl, color, hello 1. // 
2. /:/ 
3. // 
4. /a:/ ______
_____
_____
_____

答案

1. son, bus, color
2. her, first, girl
3. of, hello
4. card, father