问题: 倒装结构33
Until they have a better command of the essential technique, _____________ an effective
program to protect the rare animals.
A. can’t they develop B. they can’t develop
C. do they develop D. they develop
请写出详细的解题过程和思路。
解答:
句子以以下一些状语开头时,句子用倒装结构:
never seldom rarely little often well many a time
in vain not only not until hardly scarcely no sooner..
only+状语 so+状语
否则就不必倒装.
按这一语法规则,本句的正确答案似为 B.
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