Sorry，Mum, I lost my key to the bicycle again． —Oh! How_____ you be so careless! You have to learn to look after your belongings．

eek,a new film about Alexander is tobe released, ___Colin Farrell as the great man and Angelina Jolie ___ hisinfamous mother

Help others whenever you can _______ youwill make the world a nicer place to live in.

Last month, doctors used a 3-D printer to rebuild the face of a person ____ had a bad accident.

When Marx was in London, he __read at the library for hours.