下列关于部分函数依赖的叙述中，哪一条是正确的？（） A．若X→Y，且存在属性集Z，Z

完型填空(10分)
A student and his teacher are walking past a field. They   1 an old pair of shoes. The shoes are the old man’s. He’s  2  on the other side of the field. The student says, “Let’s  3 the shoes away. It will be funny when he   4 find his shoes.” The teacher says, “Don’t play a  5  on others. It may be funny for you, but  6 will he do without shoes?” Then the teacher puts some  7   into the shoes and says,” Let’s go behind the tree.” A few minutes later, the old man comes to   8 his shoes. When he finds the money, he looks around. No one is there. He cries and  9  ,”Thank you very much for the money! My wife is ill and my children have nothing to   10  .”

小题1:	A．clean B．sell C．buy D．see

小题2:	A．working B．studying C．playing D．shopping

小题3:	A．bring B．take C．ask D．put

小题4:	A．can B．can’t C．must D．mustn’t

小题5:	A．trick B．game C．ball D．way

小题6:	A．when B．where C．what D．why

小题7:	A．eggs B．apples C．money D．toys

小题8:	A．look after B．put on C．look at D．wait for

小题9:	A．tells B．says C．talks D．speaks

小题10:

A．buy B．learn C．enjoy D．eat