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1.In 1990,it _ more than five billion.2.Now at the beginning of the 21st the world's population _ six billion.3.four hundred years ago,the number___over 500 million.用reach 、pass 、be 填空.尽量不要用重复的词填空.

分类: 作业答案 • 2022-04-13 15:02:59

问题描述：

1.In 1990,it ___ more than five billion.
2.Now at the beginning of the 21st the world's population ___ six billion.
3.four hundred years ago,the number___over 500 million.
用reach 、pass 、be 填空.尽量不要用重复的词填空.

答

1.In 1990, it _reached__ more than five billion.
2.Now at the beginning of the 21st the world's population _passes__ six billion.
3.four hundred years ago, the number_was__over 500 million.

答

was
has reached
was

1.In 1990,it ___ more than five billion.2.Now at the beginning of the 21st the world's population ___ six billion.3.four hundred years ago,the number___over 500 million.用reach 、pass 、be 填空.尽量不要用重复的词填空.

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1.In 1990,it _ more than five billion.2.Now at the beginning of the 21st the world's population _ six billion.3.four hundred years ago,the number___over 500 million.用reach 、pass 、be 填空.尽量不要用重复的词填空.