your friend looks very young 请问为什么这里的look要加s如果分别是your friends 与 your friend 该怎么加.
问题描述：
your friend looks very young 请问为什么这里的look要加s
如果分别是your friends 与 your friend 该怎么加.
答
your friend是单数,动词用第三人称单数,所以用looks.要是your friends就要用复数动词look.