急While she____(sit)in the library,someone________(throw)a le

急
While she____(sit)in the library,someone________(throw)a letter through the window.
When the telephone_______(ring),she______(do)her housework.
When I_______(leave)the party,the people______(enjoy)themselves.
He____(not go)to school yesterday because he ___(not feel)very well.
The teacher____(go)into the classroom while the boy___(draw)on the blackboard.
She___( break)her ankle while she____(play)tennis.
When my brother_____(come)into the room,I_____(telephone)Mary.
I__(listen)to the music when you_____(knock)at the door the first time.
While the children____(play)outside,their mother__(cook)their dinner.
It___(rain)heavily when we——————————（leave）the house.
这是自主学习上的好不好~
55~我的分哪！