After _ (examine) me carefully,the doctor said there was nothing wrong with my heart.答案是examining.为什么要这样子填?具体哪一个语法点?

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After _ (examine) me carefully,the doctor said there was nothing wrong with my heart.答案是examining.为什么要这样子填?具体哪一个语法点?
After _ (examine) me carefully,the doctor said there was nothing wrong with my heart.
答案是examining.为什么要这样子填?具体哪一个语法点?

After _ (examine) me carefully,the doctor said there was nothing wrong with my heart.答案是examining.为什么要这样子填?具体哪一个语法点?
examining
主动式,医生执行的动作,放在介词之后用动词的ing形式.
老师祝你学习进步!
望采纳,多谢!^_^

after+ving 这里after表介词

after 是一个介词,后面用doing 形式

独立主格结构嘛!the doctor 是examine的实际主语

动词不定式做状语