Change these sentences into passive voice. 1) my father waters this flower every morning=)

A) change these sentences into passive voice
1) my father waters this flower every morning
=)........................................................................
2) John invited Fiona to his birthday party last night
​=)........................................................................
3) we should learn our teeth twice a day 
​=)........................................................................
4) our teachers have explained thể English grammar
​=)........................................................................
5) Tom will visit his parents nex month
​=)........................................................................