( ) -I think recycling books and paper is useful. - A. I quite agree. B. I have no idea. C. We shouldn’t use such things. D. That’s a great idea. 查看更多

 

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—I think recycling books and paper is useful.     
—______
[     ]
A. I quite agree.            
B. I have no idea.
C. We shouldn't use such things.    
D. That's a great idea.

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