摘要： -How does the old man make a living in the city? - newspapers in the streets. A. To sell B. To selling C. By selling D. For selling [解析]选C.通过问句how可知问的是方式.用by doing来回答.by通过某种方式或手段.

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---How does the old man make a living in the city?
---______ newspapers in the streets．

A.
To sell
B.
To selling
C.
By selling
D.
For selling

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－How does the old man make a living in the city?

－________ newspapers in the streets．

To sell

To selling

By selling

For selling

---How does the old man make a living in the city?---______ newspapers in the streets．

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---How does the old man make a living in the city?
---______ newspapers in the streets．