同义句转换.
问题描述：
同义句转换.
1.A computer can do a calculation in a flash.
2.She told a lie.
3.The worker failed to catch the train.
4.The boy continued playing computer games.
答
1.A computer can calculate in a flash.
2.She didn't tell the truth.
3.The worker couldn't cathch the train.
4.The boy kept playing computer games.