The country has already sent up three unmanned spacecraft , the most recent at the end of last March.
A. has been launched
B. having been launched
C. being launched
D. to be launched
The country has already sent up three unmanned spacecraft , the most recentat the end of l
答案:2 悬赏:60 手机版
解决时间 2021-04-05 03:44
- 提问者网友：自食苦果
- 2021-04-04 15:18
最佳答案
- 五星知识达人网友：傲气稳了全场
- 2021-04-04 16:46
A. has been launched(答案→)B. having been launchedC. being launchedD. to be launched解析：考查独立主格。the most recent spacecraft和launch之间是动宾关系，at the end of last March.表面用完成形式。所以选B。
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- 1楼网友：罪歌
- 2021-04-04 17:15
哦，回答的不错
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