how many childen are there in mr green's family的意思

how many childen are there in mr green's family的意思 how many bears are How many derks are how many trees are how many books are Mr.White has two sons ,and each of them has a sister.how many childen does he have? how many legs are there? how many stop are there How many pears are there? How many stars are there? How many birdges are there? HOW MANY BOOKS ARE THERE How many people are zhere? How many people are there? How many apples are these how many girls are there How many pig are three? how many hens are there