（ ） the pair of the stockings cost A.how many does B.how much does C.how much do D.how many do
问题描述：
（ ） the pair of the stockings cost A.how many does B.how much does C.how much do D.how many do
要原因,
答
B
那双长袜值多少钱?
a pair of .做主语时,谓语用单数the pair of the stockings 是复数，为什么还要用does因为这是疑问句， 要用倒装语序。