This is a vary interesting book. I'll buy it,_. A.however much it may cost B.no matter how it cost请帮忙解释!

问题描述:

This is a vary interesting book. I'll buy it,_. A.however much it may cost B.no matter how it cost
请帮忙解释!

B.no matter how it costs

选A
B项可以改成no matter how much it cost 这样就正确了