问题
If we don’t take steps, the Tibetan antelopes and pandas will ____ some day just as dinosaurs.
A:die down
B:die out
C:die away
D:die off;
B:die out
C:die away
D:die off;
正确答案是：
同类题型
Can you stay here longer—_______.But I have to prepare for my exam.
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__ money for school fees, I had to take another part-time job.
The other day we ______ some visitors from Switzerland.
___________ I toured Zhang Jiajie, I was deeply impressed with its beautiful scenery