While/when my father was reading a newspaper, my mother was looking at the family album.

I was having a shower while/when y my friend broke my mother's Chinese vase.

While/when
the teacher came into the classroom, some students were arguing with each other.

The Parsons were having dinner while/when the doorbell rang.
.
What were you doing while/when the teacher looked at you suddenly?​

Dear oleg, i was very glad to hear from you again. sorry, i haven't written for ages because of my school activities. i think that my school is the best one. i love it very much. our teachers are kind and intelligent and my classmates are smart and friendly. but everybody has a dream. the dream about our new school - the school of the future. now i would like to tell you a few words about my ideal school. first of all if i were a headteacher of my school i would allowed everybody to have an opportunity to use one's phone. the second thing is our homework. so much of it! don't the teachers know that it is waste of time, our time and theirs. the next. our holidays. i would like to travel a lot. but when? our holidays must be a bit longer i think. and at last the equipment of our classrooms! what do we see? there are few computers which we can use. my dream is every classroom has ten and more new computers with internet. it's school of my dream. that's for me today. i have to go. best regards to your family.write soon. andrey

Three men entered the room and everybody stood up. the old women were sitting on the bench yesterday at 6 p.m. our children like ice cream very much. don’t forget to clean your teeth. oh, you are standing on my feet! there many geese and sheep in the farm.   i am afraid of any mice. there are deer and oxen in the zoo.