As no one in the small village (knew) (nothing) about medicine, Mrs. Smith, a fo

游客2025-03-15 6

问题 As no one in the small village (knew) (nothing) about medicine, Mrs. Smith, a for-mer nurse, (had to) work (as) a doctor.

选项 A、knew
B、nothing
C、had to
D、as

答案 B

解析改为anything。前面是否定，后面就必须用anything，用nothing就是双重否定了。

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