What are these?They have 3 eyes,red,yellow and green.Oh,they aretraffic light.But why do they have 3 colours?Because there ary_______ ________.这是完整的题目,不知道横线上填什么啊,

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/28 00:23:54
Whatarethese?Theyhave3eyes,red,yellowandgreen.Oh,theyaretrafficlight.Butwhydotheyhave3colours?Becaus

What are these?They have 3 eyes,red,yellow and green.Oh,they aretraffic light.But why do they have 3 colours?Because there ary_______ ________.这是完整的题目,不知道横线上填什么啊,
What are these?They have 3 eyes,red,yellow and green.Oh,they aretraffic light.But why do they have 3 colours?Because there ary_______ ________.
这是完整的题目,不知道横线上填什么啊,

What are these?They have 3 eyes,red,yellow and green.Oh,they aretraffic light.But why do they have 3 colours?Because there ary_______ ________.这是完整的题目,不知道横线上填什么啊,
What are these?They have 3 eyes,red,yellow and green.Oh,they aretraffic light.
But why do they have 3 colours?Because there are _three______ __signals______.