For seven days after the mud-slide, they had only grass and tree leaves to subsist upon.
A．made food out of
B．substitute for beds
C．live upon by eating
D．insist on keeping to themselves
参考答案：C
解析：[分析]习语辨析 subsist upon表：维持生活，生存；A．made food out of用……制造食物；B．substitute for beds用……来代替床；C．live upon by eating靠吃……生活；D．insist on keeping to themselves坚持保守秘密；因此C为答案。
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Tom was also a 2 boy. One day, a rich man 3 Miser appeared （出现) in front of Tom. He watched his 4 shoes for a while, and then, looked at Tom. Tom knew this kind of people well. They love money but hate to spend it. Tom said, "Let me 5 your shoes, sir. Only two pence (便士), sir. " Mr Miser shook (摇) his head and walked away. Tom thought for a moment andthen called out, "I'd like to clean it for nothing. " This time Mr Miser agreed. And soon one of his shoes was shining brightly. When the rich man put his other shoe on the stool (凳子), Tom said he wouldn'tclean it for him 6 he was paid two pence for his work. Mr Miser was very 7 . He refused to pay anything and went away. But to his 8 , the well-cleaned shoe was so bright that it made the other onelook even dirtier. Mr Miser looked around. People in the street were 9 at him. Finally the rich man 10 and gave Tom two pence. In a very short time his two shoes shone brightly. |