lily turned off the compurter after she had finished writing

lily turned off the compurter after she had finished writing she turned off the DVD after he finished his homework.(保持原句意 She had finished writing the letter when I went in. she had turned off the light 句中的had做什么用,能否去掉 though tom had turned the lights off she turned off the light and then_________ After the blind man had finished studying in the college,she 将下列句子改成被动句1.Jim had finished the work.2.She was writing a le she finished writing the letter just now 改为现在完成时 2道英语题1.She went to bed after she finished writing her comput She went to bed after she finished writing her computer game he had a rest after he finished drawing the picture