Dear teacher,
In a Grade 2 concussion, the person also remains conscious and has one or more symptoms of a Grade 1 concussion but also develops an inability to recall events just before or after the injury occurred. In this case, the symptoms last longer than 15 minutes. Only in a Grade 3 concussion is there a loss of consciousness when the victim is unresponsive to sound or light.
Q : I believe the function of "there" is an emphasis, isn't it?
"There" for emphasis
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