How many person are there in my family?
1. How many people are there in our family ?
people是一个单复数一样的词
2. How many persons are there in our family ?
因为 person 后面是 are 所以要用复数形式 加 s
以上两种说法第一种用的比较多
How many 多少 person人 are there有 in
在 my我 family家庭
How many person are there in my family?
How many person in my family?