Question

The teacher came into the classroom with a smile on his face.同义句

改成 The teacher____the classrom,_____.
还有 He left the room,followed by a boy,walking very fast.
改成 He left the room,followed by a boy,____ _____ rery fast.
拜托拜托！

Answer 1

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

Answer 2

reached或entered smiling on his face
who walked