The white building, ______ threats to pull it down, is now a private house in the possession of a retired professor.
Helen ________ her keys in the office so she had to wait until her husband ______ home.
People in Tianjin are proud of ______ they have achieved in the past few years.
Bears often hide themselves in places __________ can’t be found by hunters.
There were dirty marks on her trousers _______ she had wiped her hands.
After a lot of questioning, Jack ______ admitted he had taken the car.