How much do you ( ) the dress?A cost for B spend in C pay fo

选C
花费 pay for
而cost的主语是物,而且cost后面不跟介词
spend some money on sth /spend some time in doing sth
再问： You’d better _______ us more details. 　　A．tell B．to tell C．speak
再答： 选 A had better do sth tell是及物动词后面可以跟宾语us 如果帮到你，请记得采纳，O(∩_∩)O谢谢