题目内容
【题目】To prevent this from happening again, John Snow suggested that the source of all the water supplies __________.
A. be examining B. should be examined
C. was examined D. to be examined
【答案】B
【解析】句意:为了防止这种情况再次发生,约翰斯诺建议对所有的水源进行检查。suggest的宾语从句用虚拟语气,其构成为should do, should可以省略掉。故选B。
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