问题补充:
I tried hard to get some information about the new technology from him, but he remained .
A. peaceful
B. skilful
C. silent
D. calm
答案:
A. peaceful
B. skilful
(答案→)C. silent
D. calm
解析:形容词辨析。A和平的;B熟练的;C沉默;D镇定的;句意:我努力想从他努力得到一些关于新的技术的信息,但是他保持沉默。故C正确。