1._______（一进屋）,I sensed that someone had smoked here during my absence.(on)
问题描述：
1._______（一进屋）,I sensed that someone had smoked here during my absence.(on)
2.He feels quite tired as he _______（一直在刷油漆）his windows all day along.
答
1 On entering the room
2 Has been painting
保证对