语法填空,请详细解析每一空.

语法填空,请详细解析每一空.
This is a syory that happened when I went to the hospital last weeken.I was sitting in the doctor’s office,where there were a lot of impatient people.Finally,the  11     of the doctor’s room opened,and the next person in line,a woman, 12     (allow)to go in.
“Hurry up!”I thought to meself.However,all the time the woman was typing into a small database computer.”  13     ridiculous it is!”The little voice inside me was saying,”You  14     wait till after    15   (finish)your appointment.”
The doctor stood waiting for her,  16    all the time she was busy with her database,which made me even   17  (angry).Doesn’t she realize that everyone,including the doctor,is waiting for her?
I went on  18    (survey)the scene when the doctor started asking her questions.Instead of answering,she juse typed something;then handed the computer to the doctor,who glanced at what she had written on it.I suddenly realized why she was typing all the time and felt 19    great sence of shame for misjudging her.Each time the doctor asked her a question,she typed the answer and show  20    to the doctor,the unfortunate lady was mute.