3- junior high school life will be over . I will remember those things and teachers ____ are unforgotten .

Every Earth Day , We are made _____ signs to warn people to protect the nature .

Excuse me. You shouldn’t smoke here. Look at the sign “NO SMOKING HERE”.–Sorry, I ________ it just now.

Why does she always ask you for help? —There is no one else ______, is there?

Everyone knows that a desk is made _____ wood and paper is made _____ wood, too. [ ]