题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

A few years ago, I had to stay at the hospital for three days for a medical test. I 1.(ask) to stay awake for more than 30 hours because of the test. It could be 2.(extreme) difficult for anyone. And I didn't believe I could make it. My mother said she would accompany me. But I knew even 3. my mother accompanying me， it wouldn't be easy.

To my surprise， that afternoon 4. my mom came to my room， she had my friend Susan with her. That afternoon Susan called my mother. As soon as she 5. (hear) I needed to stay awake for so long, she decided to help me. So she offered 6.(come) to the hospital to stay with me and help keep me awake. Things became much 7. (easy) than I had imagined with Susan's help. She told me stories and jokes , and time passed very quickly.

Without Susan's help，8. whole stay in the hospital would have been much more difficult. And our 9.(friend) became deeper from then on. I think nothing can keep us apart. I'm so 10. (thank) that I have such a friend.