英语:用at that time改写句子

问题描述:

英语:用at that time改写句子
The boy is playing computer games now.
The boy _____ _____computer games at that time.

was playing 因为在那个时候的话就是表示过去正在发生的事所以用过去进行时 就像例句中now对应现在进行时一样 呵.