摘要：29．If we had taken such effective measures much earlier, the river so seriously now． A．is not polluted B．would not be polluted C．had not been polluted D．would not have been polluted
网址：http://m.1010jiajiao.com/timu_id_2787286[举报]
If we had taken such effective measures much earlier, the river ________ so seriously now．
[ ]
A．is not polluted
B．would not be polluted
C．had not been polluted
D．would not have been polluted
If we had taken such effective measures much earlier, the river ________ so seriously now．
[ ]
A．is not polluted
B．would not be polluted
C．had not been polluted
D．would not have been polluted
If we had taken such effective measures much earlier, the river________so seriously now.
A．is not polluted B．would not be polluted
C．had not been polluted D．would not have been polluted
查看习题详情和答案>>