It is not always easy for the public to see _____ use a new invention can be of to human life.
A. whose |
B. what |
C. which |
D. that |
推荐试卷
It is not always easy for the public to see _____ use a new invention can be of to human life.
A. whose |
B. what |
C. which |
D. that |
试题篮
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