How many children （does） your uncle（ have）?为什么要用does和 have?

---( )children are there in you fanily?----Three.A.How much B.How often C.How many D.How old how many children does cage have How many children has your mother got? how many children are having the field How many children has your mother got? How many balls do the children play? 翻译:How many children does he have? How many children in our school?还是how many children our school? -How many _ are there in your class -At about 63 A.childs B.childrens C,children D.child many,do,have,children,tent,the,how(?) 怎么连成句子 how many children is there in the sandbox.改错 How many children are there in your class? are,many,children,how,there连词成句 children,many,there,your,class,in,how,are连成一句话 many,do,have,children,tent,the,how(?) 怎么连成句子 How many days do children have for weekend holiday?中文? how many children are having the field trip 怎么回答 how many children are there in Bill's