How many ___do you need?A.pairs of socks B pair of socks C pair of sock D pairs of sock 小升初题How many ___do you need?A.pairs of socks B pair of socks C pair of sock D pairs of sock小升初题讲清楚为什么
问题描述：
How many ___do you need?A.pairs of socks B pair of socks C pair of sock D pairs of sock 小升初题
How many ___do you need?
A.pairs of socks B pair of socks C pair of sock D pairs of sock
小升初题
讲清楚为什么
答