把下列句子变成过去完成时.1、Jack has already finished the work.Jack went
4个回答

1、Jack has already finished the work.

Jack went to bed after (he had finished the work).

杰克写完作业之后去睡觉.

2、They have walked for a long time.

They felt tired and thirsty after (they had walked for a long time).

他们走了很长时间之后感到累了.