题目内容
20、Every means ______ prevent the water from ______.
A．are used to; polluting B．is used to; polluting
C．is used to; polluted D．is used to; being polluted
试题答案
20、D
Every means ______ prevent the water from ______.
|
A．are used to; polluting |
B．is used to; polluting |
|
C．is used to; polluted |
D．is used to; being polluted |
查看习题详情和答案>>
Every means ______ prevent the water from ______.
A．are used to; polluting B．is used to; polluting
C．is used to; polluted D．is used to; being polluted
查看习题详情和答案>>Every means ______ prevent the water from ______.
A．are used to; polluting B．is used to; polluting
C．is used to; polluted D．is used to; being polluted
查看习题详情和答案>>Every means ______ prevent the water from ______.
A．are used to; polluting B．is used to; polluting
C．is used to; polluted D．is used to; being polluted
查看习题详情和答案>>Every means _____ prevent the water from _____.
|
A．are used to; polluting |
B．will be used to; polluting |
|
C．is used to; polluted |
D．is used to; being polluted |
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Every means _____________ prevent the water from ___________．
A．is used to , polluting B．is used to, polluted
C．are used to , being polluted D．is used to , being polluted
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Every means ________ prevent the water from ________.
[ ]
A．are used to; being polluted
B．is used to; polluting
C．is used to; polluted
D．is used to; being polluted
查看习题详情和答案>>