- 试题详情及答案解析
- ---How can I save the water?
---It’s easy. First, make sure the tap ____________ after using.| A．turns off | B．is turned off |
| C．turns on | D．is turned on |
- 答案：B
- 试题分析：句意:-我怎样才能节约水？-这很容易。首先要保证在用完水后关上水龙头。turn off 关闭；turn on 打开。根据句意可知，用完水后要关上水龙头，故C和D不对；并且这里the tap和turn off构成被动的关系，应该用被动语态。故选B。
考点：考查动词的被动语态和动词短语辨析。