【题目】These shoes look very good. I wonder__________.（ ）
A.how much cost they are
B.how much do they cost
C.how much they cost
D.how much are they cost
【答案】C
【解析】
根据I wonder 再结合选项，可知I wonder 后面是跟一个宾语从句，宾语从句中应该用陈述语序，即主语+谓语，所以排除BD。选项A没有这种说法，选项C是陈述句语序，符合宾语从句的语序要求，故选：C。