问题
The research on the new bird flu virus vaccine ischallenging and demanding Who do you think can do the job—____ my students have a try
A:Sure, please do
B:No, you do the same
C:Oh, that’s all right
D:Ok, coming
B:No, you do the same
C:Oh, that’s all right
D:Ok, coming
正确答案是：
同类题型
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