Statistics from the developed countries suggest that it is only when people’s li

游客2025-03-21 29

问题 Statistics from the developed countries suggest that it is only when people’s living standards begin to rise______to fall.

选项 A、can birth rate begin
B、that birth rate begins
C、that birth rate should begin
D、then birth rate begins

答案 B

解析这是一个it is…that…强调句结构，分析出这一点，就自然能找出正确选项了。考生切不可将句子看成是以only开头的要求倒装的结构而错选A；suggest在句中的意思是"表明"，不是"建议"，所以宾语从句中谓语不需要虚拟形式，因此C也是错的。

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