Write one word in each gap.

When I broke my arm a week ago, I guess it (1) ______________ to have hurt. But it didn't! We were doing PE at school, and we were making a pyramid. We (2) ______________ to stand on each other's shoulders. I was right at the top. We (3) ______________ have been doing it properly because suddenly the pyramid collapsed and we all fell. I landed on my arm. Mr Jenkins (4) ______________ have known immediately that I’d broken my arm because he sent someone to call an ambulance. ‘Sit still, and don’t move your arm at all until the ambulance comes,’ he said. I (5) ______________ still remember the feeling – my arm was numb, and looked very strange, but there was no pain at all. I remember thinking: ‘It (6) ______________ be broken. If it was broken, I’d be in agony.’ I suppose not feeling any pain (7) ______________ have been because I was in shock. The plaster (8) ______________ come off in about three weeks but it (9) ______________ have to stay on longer. It depends on whether the break has healed properly or not. The next three weeks may (10) ______________ be the best three weeks of my life – no basketball, no playing in the playground, no swimming – but I’m counting my blessings. It (11) ______________ have been a lot worse!