[单项选择]A. Someone spilled water on it. B. Someone lost it.
C. It was made of low quality metal. D. The standard for measuring had changed.

[单项选择]Who spilled the drink all over David

Who spilled the drink all over David
A．The man next to him. B．David’s morn.
C．The flight attendant. D．The ticket agent.
A. The man next to him.
B. David’s morn.
C. The flight attendant.
D. The ticket agent.

[单项选择]Never has a scientific explanation emerged（）someone somewhere has objected to it.
A. that
B. which
C. whom
D. but

[单项选择]Someone must have left the tap on, ______the water was running over and flooding the bathroom.
A. for
B. therefore
C. moreover
D. however

[单项选择]

Happiness is (21) everyone looks for. Maybe someone says that he is (22) . However, what makes him happy may not (23) for Others. And even worse, someone may spend all his (24) looking for happiness, but in vain(徒然).
In the past, I tried my best to (25) myself happy. I thought if I could freely get and do what I wanted to, I (26) be happy. Certainly, it was possible but I was (27) Though I could be happy at times, I couldn’t keep my happiness for a long time. Why One day, when I told a friend of mine what I (28) about happiness, he smiled and said only a few words, "Happiness is not a single thing but a by- product(副产品)." I was surprised, but he was really (29)
Someone thinks money can (30) everything, but when he becomes a millionaire after his work, perhaps he (31) find that he has new (32) . And he has to go to church for
(33) . Sometimes love can
A. make 
B. feel 
C. have 
D. let