They have two school trips every year改为一般疑问句
问题描述：
They have two school trips every year改为一般疑问句
答
Do they have two school trips every year？
加油！不明白再问！如果帮到你，请采纳，谢谢！
答
Do they have two school trips every day？
答
Do they have two school trips every year？
改一般疑问句时，有be动词（am、is、are）直接提前，如果没有，在前面加助动词（do、does）
答
Do they have two school trips every year?
答
Do they have two school trips every year?
他们每年都有两次学校旅游吗?
希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问(*^__^*)