问题
选择题
His aunt’s letters ________ him of those beautiful days when they used to live together in his hometown.
A．call up
B．call for
C．call on
D．call at
答案
答案：A
call up“回忆、想起”；call for“需要、要求”；call on“号召、恳求、拜访(某人)”；call at“(到某地)访问”。