2. 职称英语
  3. Which of the following sentences expresses probability?A、He must have picked up

Which of the following sentences expresses probability?A、He must have picked up

游客2023-10-21  32
问题 Which of the following sentences expresses probability?
选项 A、He must have picked up a cold—he’s begun to snuffle.
B、We must have a clear understanding of the problem.
C、One must have one’s own opinions and not drift with the current.
D、To be healthy one must have an adequate diet.
答案 A
解析 下面哪一句用来表达可能性?情态动词题。情态动词must除了用来表示命令、必须如何以外，还可表示有依据的肯定推测，意为“一定会”。对现在情况的推测，谓语用“must+动词原形”；对已经发生的情况的推测，谓语则用must have done。A项意为“他开始鼻塞，一定是感冒了。”而B、C项以及D项中的must have都表示“必须要有”。因此，A项为答案。
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