Correct each sentence

1 Children will have to cook breakfast themselves. 2 Children, you will have to cook breakfast yourselves. 3 The computer turned itself off. What's wrong? 4 Nobody helped us , we did everything ourselves. 5 I like the film. - So do I.6 I have seen the film. - So have I.7 I have cleaned my room. So have I.8 If I come early, I will wait for you. 9 I will switch off the computer before I leave the office. 10 The text is more difficult than the dialogue.