I wonder how much .
A. the watch costs
B. did the watch cost
C. the watch costed
D. does the watch cost
网友回答
(答案→)A. the watch costs
B. did the watch cost
C. the watch costed
D. does the watch cost
解析：考察宾语从句.宾语从句中一般为陈述语序.句意:我想知道这块表花多少钱。物品的价钱是一个客观的存在，故应用一般现在时态，选A。