问题
选择题
The baby is practicing ______ with his mother. [ ]
A. walk
B. to walk
C. walking
D. walks
答案
答案：C
搜题请搜索小程序“爱下问搜题”
The baby is practicing ______ with his mother. [ ]
A. walk
B. to walk
C. walking
D. walks
答案：C