Insert the verb to be (to) or to have (to) in the necessary tense form. 1. I wondered what ... to happen to us. 2. It

1. I wondered what has to happen to us. 2. It looks like raining. You have to take your raincoats. 3. We agreed that the one who came first had to reserve seats for the rest of us. 4. Nobody met me at the airfield as I had to have arrived a day later and could not warn any of my friends of the change. 5. He always puts off doing what he has to do until it has to be done. 6. We have to leave on Monday, but because of a two days\' delay with the visas we have to book tickets for Wednesday. 7. There is nothing strange in what he did. It is to be expected. 8. It was too late to change the plan, and it was to remain as it was. 9. You have not to tell him about it if you don\'t want to. 10. You have not to tell him anything about it before you get further instructions. 11. They hoped to spend the summer together, but that was not to be. 12. Have I to do it all by myself? 13. When no food was to be had he seemed capable of doing without.