You can see the bright Yaoming today but can’t imagine what a hard time he hadhimself hom

问题补充：

You can see the bright Yaoming today, but can’t imagine what a hard time he hadhimself home and abroad before.

A. training

B. trained

C. to train

D. train

答案：

(答案→)A. training

B. trained

C. to train

D. train

解析：考查固定搭配。a hard time是先行词，代人定语从句应是he had a hard time himself home and abroad before.构成have a time doing sth.结构。所以选A。