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
Although medical science control over several dangerous diseases, what worries us is that
答案:2 悬赏:20 手机版
解决时间 2021-01-10 00:46
- 提问者网友：蔚蓝的太阳
- 2021-01-09 03:35
最佳答案
- 五星知识达人网友：等灯
- 2019-07-22 14:42
A. achieved(答案→)B. has achievedC. will achieveD. had achieved解析：考查动词时态。由are returning(将会返回)可知“现在已经成功控制”了，要用现在完成时。
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- 1楼网友：野慌
- 2019-06-22 09:03
我也是这个答案
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