问题
选择题
The old man was quite weak after the accident. So he _____. [ ]
A. must be take care of
B. must take care of
C. must be looked after
D. must look after
答案
答案：C
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The old man was quite weak after the accident. So he _____. [ ]
A. must be take care of
B. must take care of
C. must be looked after
D. must look after
答案：C