问题
选择题
All the students injured in that accident are still in hospital, ________for further observation. [ ]
A. kept
B. keeping
C. having kept
D. to be kept
答案
答案：A
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All the students injured in that accident are still in hospital, ________for further observation. [ ]
A. kept
B. keeping
C. having kept
D. to be kept
答案：A