问题
选择题
She looked at the beautiful scarf and wondered .
A．how much does it cost
B．how much it costs
C．how much did it cost
D．how much it cost
答案
答案：D
题目分析：句意：她看着这个漂亮的围巾，想知道它值多少钱。此处考查疑问词引导的宾语从句，应该是疑问词+陈述句的语序，排除A和C；主句用了looked一般过去时，从句应用过去范围内的时态，故选D。