问题
选择题
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
答案
答案：B
搜题请搜索小程序“爱下问搜题”
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
答案：B