Question

There ________ be any difficulty in passing the final examination since you have made enough preparations in the training courses．

1. A.
   needn't
2. B.
   shouldn't
3. C.
   mustn't
4. D.
   shan't

Answer 1

B
解析：
句中since状语从句提示，空缺处是表示推测的情态动词，而四个选项中，能表示推测的情态动词只有should和must，但must通常用在肯定的陈述句中，在否定句或疑问句中要换用can或could，故最佳答案是B，作“不应该”解。