What's _ most vseful invention in the 20th century?--_computer,I think A The ;A B a;A

分类: 作业答案 • 2021-12-20 12:22:31

问题描述：

What's ___ most vseful invention in the 20th century?--___computer,I think A The ;A B a;A
C The; The D /; The请讲的详细点

答

What's ___ most vseful invention in the 20th century?--___computer,I think
选C
第一空是因为形容词*加the表示
第二空是应为它是特指电脑这项发明,所以用the

What's ___ most vseful invention in the 20th century?--___computer,I think A The ;A B a;A