题目内容
---What’s _______most useful invention in the 20th century?
---________computer, I think.
A. the; A B. a; A C. the; The D. /; The
练习册系列答案
相关题目
题目内容
---What’s _______most useful invention in the 20th century?
---________computer, I think.
A. the; A B. a; A C. the; The D. /; The