问题
选择题
______a nurse, she knew how to take care of a patient.
A．Been
B．Being
C．To be
D．Be
答案
答案：B
搜题请搜索小程序“爱下问搜题”
______a nurse, she knew how to take care of a patient.
A．Been
B．Being
C．To be
D．Be
答案：B