2. 职称英语
  3. The water will be further polluted unless some measures ________.A、will be taken

The water will be further polluted unless some measures ________.A、will be taken

游客2023-09-24  44
问题 The water will be further polluted unless some measures ________.
选项 A、will be taken
B、are taken
C、were taken
D、had been taken
答案 B
解析 考查时态。在时间和条件状语从句中，主句用将来时，从句用一般现在时。
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