英语 It’s known that the paper for books and magazines ______from w_英语解答

英语 It’s known that the paper for books and magazines ______from wood.
A.are made B.is made C.has been made D.is being made
为什么是B 不是A

人气：273 ℃　时间：2020-05-26 01:23:47

解答

中心词是paper不是books and magazines所以单复数要根据paper的形式和意思,这里的paper是纸张,不可数,当然是is啦