Sit down,Emma. You will only make yourse
问题:
Sit down, Emma. You will only make yourself more tired, ____ on you feet. [ ]
A. to keep
B. keeping
C. having kept
D. to have kept
Sit down, Emma. You will only make yourself more tired, ____ on you feet. [ ]
A. to keep
B. keeping
C. having kept
D. to have kept