【推荐1】The dog entered the room __________ (follow) the master.

【推荐2】The doctors and nurses are so tired that they fell asleep ___________ on the floor.（sit）

【推荐3】Ⅳ. 用所给词的适当形式填空
1. We were all excited after ______ (see) the film.
2. The workers are tired. Let them stop ______ (have) a rest.
3. We ______ (put) up the tent and went to sleep.
4. I'm sorry to keep you ______ (wait) for half an hour.
5. I remembered ______ (post) the letter for you last night.