turn the following into the passive voice

题目

turn the following into the passive voice
3.we often hold football games on Friday afternoons.
4.Does Mrs White water the flowers every morning.
6.Someone takes care of both the children.
7.we must send for the doctor right away.

答案

Football games were often held by us on Friday afternoons
Are the flowers watered by Mrs White every morning?
Both the children are taken care of by someone.
The doctor must sent for right away.