the new -designed car is on show now----- a how much it costs--- b how much does it cost 并说为什么
问题描述：
the new -designed car is on show now----- a how much it costs--- b how much does it cost 并说为什么
答
B 这是一个问句,所以要用疑问的语序.cost 是一个实义动词,借助于助动词does 来提问.在宾语从句中用陈述语序.