. So many people wanted to go to the game that another train had to be .A. carried on B.

问题补充：

. So many people wanted to go to the game that another train had to be .

A. carried on

B. got on

C. put on

D. turned on

答案：

A. carried on

B. got on

(答案→)C. put on

D. turned on

解析：put on增加(营运的火车或途汽车等)。