Ответ:
He used to allow us to invite our friends.
She used to have problems at school.
They used to discuss their problems.
We used to travel by train.
They used to lose games.
I used to be angry with him.
They used to sing English songs.
Sometimes I met him at school every day.
Our classes used to start at 7.30.
They used to watch videos in class.
Объяснение:
What did you buy for your mother? по смыслу подойдут 4, 5,7, но лучше 7
Why did they go to London? 3
What country did your family visit last year? 10
I am agree with you. A sound mind in a sound body.