Our math teacher ______ in our school for 20 years and he _____ here when he was 23 years old.
---Could you tell me _______? ---Sorry, I don’t know. I was not at the meeting
Desks are made____ wood and paper is made ____wood, too.
Many trees and flowers ______in our city every year.
My deskmate asked me ____or not I wanted to be a player in the future.
You’d better go and speak to her ____. So I won’t go instead of you.