问题
选择题
Nowadays people sometimes separate their waste to make it easier for it _____. [ ]
A. reusing
B. reused
C. reuses
D. to be reused
答案
答案:D
Nowadays people sometimes separate their waste to make it easier for it _____. [ ]
A. reusing
B. reused
C. reuses
D. to be reused
答案:D