1. By 5 o’clock she has finished doing her homework.
2. We didn't know that they buy a new car.
3. We haven't plan for so many guests, so there isn't enough food.
4. When we arrived at the station, the train already left
5. She has remembered she hear the story.
6. They have refuse to go to the cinema with us, they have seen the film.
7. By 2 o’clock the lecture have finished .
8. On my way home I have bought a loaf of bread, but then I learnt that my brother buy it, too.
9. The film is more interesting than I expect.
10. I felt better after I take a pill.
2.1. The expression on his face surprised me, I never before it such saw. 2. He didn't speak to them for two days before they left. 3. Yesterday I didn't find my key because someone took it. 4. He said that he had not received an invitation. 5. He forgot where he left his umbrella. 6. I had to stay to explain what happened. 7. I was surprised when he called me, because I didn't know he was back from London. 8. The rain only stopped when we went outside. 10.at 7 o'clock, everyone is already awake.