The teacher__entered__the classrom,__smiling___.
enter为及物动词,可直接加地点名词
He left the room,followed by a boy,__who__ __walked___ rery fast.非限制性定语从句起补充说明作用
The teacher__entered__the classrom,__smiling___.
enter为及物动词,可直接加地点名词
He left the room,followed by a boy,__who__ __walked___ rery fast.非限制性定语从句起补充说明作用