If _________, the bird flu would produce a powerful poison that would kill the p
题型:不详难度:来源:
If _________, the bird flu would produce a powerful poison that would kill the patients. A. not treat B not treated C untreated D. Both B and C |
答案
D |
解析
考查省略句,主从句的主语一致时,可以省略从句的主语和be动词,选B就是if it is not treated的省略,选C就是if it is untreated的省略,所以选D。 |
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