there remain some problems to be solved中的remain可以用be代换吗

there remain some problems to be solved中的remain可以用be代换吗 remain to be settled remain to be 用法 there are so many problems remaining to be settled.这里的remain there are so many problems remaining to be settled?REMAIN不是没 several things remain to be 1.There still exist many problems to be solved.和 为什么是remain to be seen 而不是remain to see remain seated和remain to be seated有什么不同 remain stuck 和remain to be stuck有什么区别. remain to be done和remain seated 区别. remain done ,remain to be done以及remain doing 的区别