选项
A.
It may take a long time to find a solution to the problem.
B.
It might take a long time to find a solution to the problem.
C.
It could take a long time to find a solution to the problem.
D.
It should take a long time to find a solution to the problem.
正确答案：D
名词解析
- [D] 【解析】本题考察情态动词。在肯定句中，情态动词可以表示推测和可能性，程度由小到大分别是may，can，should，must.本题四个选项都表示肯定推测，但是D可能性最大。