英语语法改错题

Question

我做了几题，帮忙看看对不对
1，sir humphry davy was an execllent literary critic as well as being a great scientist.（把being去掉）
2 roger plays with rabbits but also hunts them.this is one reason why roger likes rabbits.(后面改为this is why roger likes rabbits吗？)
3 hanging by their tails from the branches,the children gazed at the monkeys.(把by去掉?)
4 last night i had my first taste of sake.it is a japanese beverage made from rice
5 john was the biggest box office attraction of his time who appeared in over 200 movies(who后面加个has)
还是最后那个第5题那个who应该用which

Answer 1

1、2题正确。
3题：the children gazed at the monkeys hanging by their tails from the branches. hanging...是分词短语做后置定语
4.it is 改为it was
5.who前面加逗号，这里是非限制性定语从句。追问

第二题我是只是感觉是这样，可是为什么one reason不要？第五题 怎么看是非限制性定语从句呢？

第二题我是只是感觉是这样，可是为什么one reason不要？第五题 怎么看是非限制性定语从句呢？