people went to the concert that was held in Renming Square the night of April 25.A. Tho

问题补充：

people went to the concert that was held in Renming Square the night of April 25.

A. Thousands of; in

B. Thousand; on

C. Many thousand; in

D. Thousands of; on

答案：

A. Thousands of; in

B. Thousand; on

C. Many thousand; in

(答案→)D. Thousands of; on

解析：句意:4月25号的晚上成千上万的人去了在人民广场举行的演唱会。thousands of 成千上万的，是一个固定短语；在具体某一天的早、中、晚，应用介词on。故选D。