Раскройте скобки, используя Present Indefinite, Present Continuous, Present Prefect либо Present

Раскройте скобки, используя Present Indefinite, Present Continuous, Present Prefect либо Present Perfect Continuous.1. I (to ring) the bell for the last quarter of an hour. 2. I want to see how much he (to change) since I last saw him. 3. You (to have) any word from him since he left? 4. Here39;s my key. I (to leave). 5. I asked them not to make any decision until they (to get) the documents. 6. Wait till you (to see) Mark and (to talk) to him. 7. But what will we do? - I (to think) about it a lot. I (to think) about it all week. But I (not to know) what to do. 8. I mustn39;t let my eyes get all red and swollen, or Henry will know I (to cry). 9. Look, I (to know) Francis very well. I (to know) him since we were very young. 10. My dear, you and I (to be) friends for all these years but I never (to tell) you what really happened to Arthur. 11. What are we going to say to him when he (to come)? 12. I39;m in great trouble. My little boy (to fall) off a ladder and (to hurt) himself.