Question

the girl has long hair is my cousin maggie中有两个动词

以这样用吗

Answer 1

不可以。要么改成主从复合句，要么改成两个并列的句子。

1. The girl who has long hair is my cousin Maggie.（who引导一个定语从句)
   

2. The girl has long hair and she is my cousin Maggie.（由and连接的简单句）
   

Answer 2

不可以。可以改为：The girl with long haire is my cousin Maggie .
祝学习进步，天天快乐！