问题补充:
--Do you know when the Chinese custom from?
--Its hard to say. But its characteristics the Tang Period.
A. began; prove
B. started; show
C. dates; suggest
D. is; appear
答案:
A. began; prove
B. started; show
(答案→)C. dates; suggest
D. is; appear
解析:考查动词短语和动词辨析。date from追溯到;prove证明;show显示;suggest暗示,表明;appear出现。句意:--你知道中国风俗习惯可以追溯到什么时候吗?--这很难说。但是,它的特征暗示唐朝。A、B的时态不正确,故选C。