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1、Everyone will have a _____(person) computer in his or her

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1、Everyone will have a _____(person) computer in his or her home in the near futuer.
(答案是personal,但是我不知道为什么)
2、A number of my classmates____form other cities.
form 和 come form的区别)
3、______number of my classmates here is 29.
number of和The number of的区别)
1.personal 意思就是个人的,personal computer本身就是固定搭配,个人电脑
2.be form 和come form,举例你就知道了:
He is from China.= He comes from China.
都是他来自中国.
3.a number of是“有很多的…”,谓语动词用(复数)形式
the number of是“…的数量”,谓语动词用(单数)形式
题目中谓语动词是is 很明显选the number of