问题补充：
The new-designed car is on show now. I wonder .
A. how much it cost
B. how much did it cost
C. how much it costs
D. how much does it cost
答案：
A. how much it cost
B. how much did it cost
(答案→)C. how much it costs
D. how much does it cost
解析：考察宾语从句。英语宾语从句中一般用陈述语序。句意：这种新设计的车正在展出。我想知道她花费多少。结合语境可知从句中描述的是客观性动作，故用一般现在时态。选C。
