.He suffered from a serious illness last year and I don’t know whether he is_____or dead now.
It was so dark that he __________.
The Wangs are considering __________ to Huangshan for a trip at five tomorrow morning.
The rule is true __________ all cases.
Don't worry; the guide will tell you how to avoid __________ ill while travelling.
Money ________ happiness; you need a certain amount (数量) to live comfortably, but more money does not necessarily buy more happiness.