"How much is that robot and that doll?"语法正确吗?

"How much is that robot and that doll?"语法正确吗? how much is that doll?为什么不能是how many 连词成句 how much is pink that big doll? How much is that How much is that colourful How much is that jacket这句话有语病吗 翻译How much water is that? How much is that book?改为两意句 how much is that soldier同义句 much,is,dress,how,that,colourful? How much is that meat, please? __________. how much is that white bag?