--Do you know when the Chinese custom_________ from?--It"s hard to say. But its

题型：不详难度：来源：

--Do you know when the Chinese custom_________ from?
--It"s hard to say. But its characteristics__________ the Tang Period.

A．began ; prove	B．started ; show
C．is ; appear	D．dates ; suggest

答案

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……”