问题描述：
详细解释英语句子的语法
第一句:
While she did what she had do,he smoked a cigarette,he first since he got to the hospital.后面的he first since he got to the hospital 的语法
第二句：
"He was your father," she answered,startled.这句的startled的语法作用
第一句:
While she did what she had do,he smoked a cigarette,he first since he got to the hospital.后面的he first since he got to the hospital 的语法
第二句：
"He was your father," she answered,startled.这句的startled的语法作用
问题解答：
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