I didn’t know Headmaster Weng was away for Beijing. I       to his office yesterday.

----Shall I go and buy more food and drinks for the party ?----- No, we have prepared a fridge of those.That ____ be quite enough.

 Whether dying patients      be helped to end their lives is a tough moral question.

---- ________ we go swimming in Xishuanghu Lake today?  ---- Oh, no. It’s ________ cold to swim on such days. I will catch a cold. 

This book _______ Lucy’s . Look! Her name is on the book cover（封面）.