问题补充:
there are so many problems remaining to be settled?REMAIN不是没有被动语态和进行时吗.记动词要不要记及物不及物.可不可以记意思,记词性容易忘实用性又很低
答案:
当然要记,不注意便不会用.
remaining to be settled 是现在分词短语作后置定语,修饰主语so many problems 的
可以改为定语从句:
there are so many problems 【which remain(系动词) to be settled?】
有许多问题有待解决