The flowers were so lovely that they in no time.A. soldB. had been sold C. were soldD. wo

问题补充：

The flowers were so lovely that they in no time.

A. sold

B. had been sold

C. were sold

D. would sell

答案：

A. sold

B. had been sold

(答案→)C. were sold

D. would sell

解析：

C。根据前面的过去式谓语were可知，后面也要用一般过去时; 再根据“花”与“卖”的关系可知，此处要用被动语态，故选C。