应该是：
I was sleeping when he came in.I was ____ ____when he ________你好, 应该是：being asleepcame in~~~~~~~~~~～～~~~~祝你进步，如对你有帮助，请及时采纳~~~~~~~~~~~~~~~~~~being是什么意思？刚才看了看，是睡懒觉，那应该是 sleeping late came in睡懒觉　sleep late ~~~~~~~~~~～～~~~~祝你进步，如对你有帮助，请及时采纳~~~~~~~~~~~~~~~~~~