I haven't give the key of my flat to my 99.
Therefore, if she want to come to my flat, she must call me first ..............
I have already told my 工人don't open the door for other people even she knows them or not (include 62 and 99) in front of my husband and 99!
Therefore, what my 99 can do is: she waits in the front door of the kindergarten at the time when my son back home.