改错:Tim bought a pair of sock.
问题描述：
改错:Tim bought a pair of sock.
答
将sock改成socks,a pair of 是一双,所以sock是复数,以k结尾的加s
改错:Tim bought a pair of sock.
将sock改成socks,a pair of 是一双,所以sock是复数,以k结尾的加s