什么情况下remain后加done 和to do?

题目

什么情况下remain后加done 和to do?
In April,thousands of holidaymakers remained abroad due to the colcanicash cloud
A.sticking B.stuck C.to be stuck D.to have stuck
It remains whether Jim'll be fit enough to play in the finals.
A.seen B.to be seem C.to be seen D.to see
为什么前者选B后者选B

答案

1. In April, thousands of holidaymakers remained (stuck) abroad due to the volcano cash cloud.remain stuck, get stuck行程受阻2. It remains (to be seen) whether Jim'll be fit enough to play in the fi...