Переделать в passive form 1. his eldest brother looked after him yestarday 2. they usually take bus #181 3.we buy food for out pets once a week. 4/mike's father pays for his education.our teacher will give us a test in maths next week 5.they will ask me many questions at the counference tomorrow.

Eldest brother was looked after ...
Buss #181 is usually taken 
Food is bought for ...
His education is paid by Mike`s father
Us will be given a test in Maths next week by our teacher
I will be asked many questions at the counference tomorrow.