Statistics from the developed countries suggest that it is only when peoples living standa
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Statistics from the developed countries suggest that it is only when peoples living standards begin to rise______to fall.
A.can birth rate begin
B.that birth rate begins
C.that birth rate should begin
D.then birth rate begins
请帮忙给出正确答案和分析,谢谢!
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正确答案:B
这是一个itis…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。
