29．The police tried to get some clues from the suspect but he remainedA. silentB. quietC.

问题补充：

29．The police tried to get some clues from the suspect, but he remained

A. silent

B. quiet

C. calm

D. secret

答案：

(答案→)A. silent

B. quiet

C. calm

D. secret

解析：考查形容词词义辨析。remain silent沉默不语；quiet不出声响，安静；calm平静；D项应为keep secret。