问题补充:
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:
A. how much cost they are
B. how much do they cost
(答案→)C. how much they cost
D. how much are they cost
解析:主要测试宾语从句。从语境考虑:句子中动词wonder和cost均需要宾语,还应该注意宾语从句的语序应该用陈述句语序,综上所述答案就可以一目了然。句子意思:这些鞋子看起来非常好看。我想它们价值无论多少均可以。