问题
选择题
The child ______ his bike and hurt himself. [ ]
A. fall down
B. fall off
C. fell down
D. fell off
答案
答案：D
搜题请搜索小程序“爱下问搜题”
The child ______ his bike and hurt himself. [ ]
A. fall down
B. fall off
C. fell down
D. fell off
答案：D