问题
选择题
______ morning exercises is good ______ us. [ ]
A. Doing, at
B. Doing, for
C. Do, at
D. Do, for
答案
答案：B
搜题请搜索小程序“爱下问搜题”
______ morning exercises is good ______ us. [ ]
A. Doing, at
B. Doing, for
C. Do, at
D. Do, for
答案：B