There was something wrong with the network, or the e-mail earlier.
A. could have been sent
B. might be sent
C. need have been sent
D. must be sent
There was something wrong with the network, or the e-mail earlier.A. could have been sent
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解决时间 2021-01-18 09:23
- 提问者网友：聂風
- 2021-01-17 11:25
最佳答案
- 五星知识达人网友：千杯敬自由
- 2019-07-22 11:23
(答案→)A. could have been sentB. might be sentC. need have been sentD. must be sent解析：考查隐含的虚拟语气：句意：网络有问题了，否则电子邮件可能早就被送到了。这里的or相当于=if There hadn’t been something wrong with the network所以主句用could have done，选A。
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- 1楼网友：底特律间谍
- 2019-06-24 06:25
好好学习下
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