Glad to see you back. How long in Russia?
Beijing Man used fire for cooking food and also for light, warmth and ________ wild beasts.
The doctor strongly recommended that he ________ a holiday.
Mr.Smith, there's a man at the front door who says he has news for you ________ vital importance.
My sister studied hard at school when she was young, which contributes ________ her success in her career.
China ________ the agreement and there are now 31 Chinese sites ________ the World Heritage list.