---Do you know when the Chinese custom______ from?
---It's hard to say. But its characteristics______ the Tang Period.A.began; proveB.started; showC.is; appearD.dates; suggest
网友回答
D解析本题关键是抓住答句中所提供的信息，“It's hard to say'’，这表明回答者并不很肯定。而prove证明，show表明，排除A，B。前一空date from意为“追溯至……”