题目内容
| The water will be further polluted unless some measures _____. |
A. will be taken B. are taken C. were taken D. had been taken |
试题答案
B
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The water will be further polluted unless some measures _____.
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查看习题详情和答案>>The water will be further polluted unless some measures ________．
[ ]
A．will be taken
B．are taken
C．were taken
D．had been taken
The water will be further polluted unless some measures ________．
[ ]
A．
will be taken
B．
are taken
C．
were taken
D．
had been taken