what the cost of ...还是how much the cost of如题,不确定的不要乱说,要说原因!

what the cost of ...还是how much the cost of如题,不确定的不要乱说,要说原因!
what the cost of ...还是how much the cost of
如题,不确定的不要乱说,要说原因!

what the cost of ...还是how much the cost of如题,不确定的不要乱说,要说原因!
2个都不对,正确的应该是what is the cost of 和how much is+something
how much 本身就有多少钱的意思

what the cost of sth 是对的
等于how much is sth....

what is the cost of

前者。
因为这个句子缺宾语
一般情况下，句子中少宾语或主语的都用WHAT来充当。
（放心，这个题型我最近才错的。老师说选WHAT）