Certainly! Here are the sentences changed from active to passive voice using the present tense and present progressive, along with the explanations:
Someone cleans the office every day.
Passive: The office is cleaned by someone every day.This restaurant bill includes service.
Passive: Service is included in this restaurant bill.Mark drives his wife to work every day.
Passive: His wife is driven to work by Mark every day.We need honest politicians in our government.
Passive: Honest politicians are needed in our government.
(Note: "Need" is a bit tricky because it's a stative verb, but the passive form can be expressed as shown.)Someone feeds the dog every day.
Passive: The dog is fed by someone every day.We wash the floors often.
Passive: The floors are washed by us often.People grow oranges in California.
Passive: Oranges are grown in California by people.They are painting my house now.
Passive: My house is being painted now.Someone is using the telephone now.
Passive: The telephone is being used by someone now.I am sending the e-mail right now.
Passive: The e-mail is being sent by me right now.
Let me know if you need further explanations!