单项选择 适中0.65 引用5 组卷602
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 |
2010·北京海淀·一模
类题推荐
The river beyond our school has become clear again as new measures are __________ to prevent it _________ any further.
| A．taken; polluting | B．taking; being polluted |
| C．taken; being polluted | D．taking; to be polluted |
The government has to close those small factories to prevent the water of the river________.
| A．polluting | B．from polluting | C．being polluted | D．from polluted |
All new development harmful to the deer is ______within park boundaries to protect the animal.
| A．saved | B．polluted | C．hugged | D．banned | E．adopted |
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