摘要： What worries us is that, more and more forest being destroyed, some animals are facing the danger of dying out. A. with B. by C. as D. for
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Although medical science control over several dangerous diseases，what worries us
is that some of them are returning．
A．achieved B．has achieved C．will achieve D．had achieved
查看习题详情和答案>>Although medical science ______ control over several dangerous diseases, what worries us is that some of them are returning.
A. achieved B. has achieved C. will achieve D. had achieved
查看习题详情和答案>>Although medical science________ control over several dangerous diseases, what worries us is that some of them are returning.?
| A．achieved | B．has achieved |
| C．will achieve | D．had achieved |