The tiger is now in danger of disappearing. So more attention ____ to protecting the tiger. A. paid ...
2022-12-28 16:29:37 49次 2014-2015学年广东汕头市业模拟考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The tiger is now in danger of disappearing. So more attention ____ to protecting the tiger.
A. paid B. must pay
C. was paid D. must be paid
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