单选题_____AsoBwhenCafterDbefore
单选题
_____
A
so
B
when
C
after
D
before
参考解析
解析：
由下文可知，把人们赶出树林之后才能继续修路，故赶出树林在前，修路在后，用连词before。故选D。
由下文可知，把人们赶出树林之后才能继续修路，故赶出树林在前，修路在后，用连词before。故选D。
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