Could you please not playpiano so loudly? Your mother is havingrest now.A. 不填; aB. a; theC

问题补充：

Could you please not playpiano so loudly? Your mother is havingrest now.

A. 不填; a

B. a; the

C. the; a

D. the; 不填

答案：

A. 不填; a

B. a; the

(答案→)C. the; a

D. the; 不填

解析：此题考查两个固定短语play the piano和have a rest。前者表示弹钢琴，后者表示休息一会儿。涉及到冠词的固定用法，故选C。