How many children in our school?还是how many children our school?

How many children in our school?还是how many children our school? how many children is there in the sandbox.改错 How many children are there in your class? children,many,there,your,class,in,how,are连成一句话 how many children are there in Bill's how many children are there?A.child B.childs C.children原题是：how many（ ）are there in the room? Among eighteen children ,how many children were born in the same month? ---( )children are there in you fanily?----Three.A.How much B.How often C.How many D.How old how many children are there in the Class 4A have dogs能否改写成how many children havedogs are there in Class 4A? how many weeks holiday do school children in England get in summer? In many families ,children know how to make m____ when they are young do family children your in many your have how you连词成句 children many there your class in how are 连词成句 Too many children are in day care centers.How to deal with it?求英语作文 There are three children in the boat.对three children提问快我写的How many children are there in the boat?可老师说是错的. how many children does cage have How many children has your mother got? how many children are having the field