The population of India has been steadily increasing for decades, and it will probably have what is estimated as 1.6 billion people by 2050 and surpass China as the world's most populous nation.
it will probably have what is estimated as
they are likely to have
the country will probably have
there will probably be
there will be an estimated
a选项指代错误 it指代了population,而事实上应该指代India
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