问题
选择题
____ enters the computer rooms should take off his shoes in order to keep them clean enough.
A．Who
B．Whoever
C．What
D．Whatever
答案
答案：B
搜题请搜索小程序“爱下问搜题”
____ enters the computer rooms should take off his shoes in order to keep them clean enough.
A．Who
B．Whoever
C．What
D．Whatever
答案：B