3. It was with great（ 悲伤) that we learned of his death.

2. Sophia cannot f herself for not seeing her mother before she died.

I.根据下面各句句意以及所给单词的首字母或 汉语提示词，写出该单词的正确形式〔每空— 词）。

1. Have you got a cloth that I can w the floor with?

12. That group is so famous now. It(must / can't) be easy to get tickets to see them perform.

11. If you want to take photos here,you (can/ should) ask permission or we might get into trouble.

10. Don’ t worry. I (shall / should) be there to meet the train.

9. Why don’ t you rest for a while? You (may / must) be tired after your long journey.

8. I've no idea where my brother is now. He (should / could) be at the North Pole for all I know.

7. I loved staying with my grandparents when I was a child. They let me read all their

books and told me I (could /was able to) go to bed as late as I wanted.

6. We’re going to the theater this evening. (Would / Could) you be interested in coming?