The English teacher isn’t here. She ________ to the office.

He said, “______ my hope that we can get well along with each other.”

We are happy to see our city is developing ________ these years than before.

He likes low-carbon life. He lives in the house ________ he built himself out of trash.

Dave, is this your English textbook? —No, it isn’t mine. Maybe it’s _______.