СРОЧНО!!!Помогите пожалуйста !!!!1. Who (to knock) at the door? 2. Look!

СРОЧНО!!!Помогите пожалуйста !!!!
1. Who (to knock) at the door? 2. Look! Victor (to dance) with Helen. He (to dance) all modern dances very well. 3. I wont go out now as it (to rain) and I (not to have) an umbrella. 4. The children are in the forest now. They (to gather) mushrooms. They always (to gather) mushrooms in summer. 5. Turn off the gas. The water (to boil). Water (to boil) at 100 C.
6. He usually (to speak) so quickly that I (not to understand) him. 7. Why you (to walk) so fast today? You usually (to walk) quite slowly. I (to hurry) because I (to meet) my mother at 5 oclock and she (not to like) to be kept waiting. 8. You (to see) my car keys anywhere? No, I (to look) for them but I (not to see) them. 9. You (to hear) the wind? It (to blow) very strongly tonight. 10. You (to recognize) that man? I (to think) that I have seen him before but I (not to remember) his name. 11. I cant hear what you (to say); the traffic (to make) too much noise. 12. Mother (to rest) now. She always (to rest) after lunch.