Only recently______to deal with the environmental problems.A、something has done

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问题 Only recently______to deal with the environmental problems.

选项 A、something has done
B、has something done
C、has something been done
D、something has been done

答案 C

解析本题考查倒装句的用法。only放在句首时，句子通常要倒装，助动词在主语前面，如：Only in this way can we work out the physics problem(只有用这种方法，我们才能解出这道物理题来)。

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