Question

【题目】—The experiment seems difficult. Would you mind doing it for me?

—Why not do it by yourself? I show you how to do it if necessary.

A. can B. needn’t C. must D. shouldn’t

Answer 1

【答案】A

【解析】句意：——这个实验看上去很难，你介意帮我做吗？——为什么不自己做呢？必要时我们可以给你展示怎么做。A. can能；B. needn’t不需要；C. must必须；D. shouldn’t不应该。根据句意，故选A。