语法填空（共10小题；每小题1.5分，满分15分）
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。
Perhaps I am Courageous, but that's because I've had some inspiring teachers. I'll tell you about one of them. Many years ago, when I worked 小题1: a volunteer at Stanford Hospital, I got to know a little girl named Liza 小题2: was suffering from a rare and serious disease, Her only chance of 小题3: (recover) appeared to be a blood transfusion (输血) from 小题4: five-year-old brother, who 小题5: (survive) the same disease and developed the antibodies needed to combat the illness. The doctor explained the situation to her little brother, and asked the boy 小题6: he would be willing to give his blood to his sister. I saw him hesitate for a moment 小题7: taking a deep breath and saying, "Yes, I'll do it if it will save Liza."
As the transfusion progressed, he lay in a bed next to his sister,小题8: (smile). But then his face grew pale and his smile faded. He looked at the doctor and asked with 小题9: trembling voice, "Will I start to die fight away?"
Being young, the boy had misunderstood the doctor. He thought he was going to have to give her 小题10: his blood.