That film is not watched by anybody.

A game is being played by my children in the room.

Chinese has been studied by them for 6 months.

This car had been bought by her by last Christmas.

Homework needs to be done carefully.

I was made to wash the shoes carefully by him.

Will a new computer be bought by you this month?

Tennis was not played by them yesterday.

Some books were had to be bought by her brother. (Note: This sentence is a bit awkward in passive voice. "Lind had her brother buy some books" does not easily convert to a standard passive form, so the meaning might be clearer in a different construction.)

We are seen going to work every morning by him