4.Most of the woods____ been taken good care of

4.Most of the woods____ been taken good care of
A.are B.is C.has D.have
wood加复数了就是可数名词了,D项为什么不对呢,麻烦帮看一下,
5.____is more beautiful than roses
A.no other flower B.no another flower C.not other flower D.not all flowers
麻烦帮看一下,这道题选什么,为什么,