题目内容
【题目】We _________ plant more trees and we _________ throw rubbish everywhere. ( )
A. must, shouldB. should, shouldn’t
C. can, mayD. shouldn’t, mustn’t
【答案】B
【解析】
略
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题目内容
【题目】We _________ plant more trees and we _________ throw rubbish everywhere. ( )
A. must, shouldB. should, shouldn’t
C. can, mayD. shouldn’t, mustn’t
【答案】B
【解析】
略