I wonder how much .A. the watch costs B. did the watch costC. the watch costed D. does th

问题补充：

I wonder how much .

A. the watch costs

B. did the watch cost

C. the watch costed

D. does the watch cost

答案：

(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。