You can see the bright Yaoming today, but can’t imagine what a hard time he had______himself home and abroad before
A.training
B.trained
C.to train
D.train
网友回答
A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。