问题
选择题
Rubbish will be made use of _______ light after this kind of new machine is invented. [ ]
A. to give
B. giving
C. gave
D. to be given
答案
答案：B
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Rubbish will be made use of _______ light after this kind of new machine is invented. [ ]
A. to give
B. giving
C. gave
D. to be given
答案：B