The sentence structure (结构) of “They painted the walls white.” is “_____”. [ ]

Do you know your head teacher’s telephone number? I have something important to tell her.—Sorry, I can’t remember. Pleasein the telephone book.

The number of students in our school ___ 9,000 and a number of them ___ from the city.

Lin Shuhao, now _______ NBA star, used to be a student of the Harvard University.

I am not going swimming tomorrow afternoon.——___________. I have to clean up my bedroom.