问题
选择题
I really don't know _____. [ ]
A. what to do it
B. how shall I do it
C. how to do it
D. what shall I do it
答案
答案：C
搜题请搜索小程序“爱下问搜题”
I really don't know _____. [ ]
A. what to do it
B. how shall I do it
C. how to do it
D. what shall I do it
答案：C