题目内容
If there are trees, the air in our city will be cleaner.
| A．less, more | B．more, more | C．more, much | D．much, more |
C
解析
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题目内容
If there are trees, the air in our city will be cleaner.
| A．less, more | B．more, more | C．more, much | D．much, more |
C
解析