John ran into the room,with a grin on his face 如何改同意句?

John ran into the room,with a grin on his face。
1）= John ran into the room,grin on face。
注：此句采用独立主格结构做伴随状语。
2）= John ran into the room,grinning。
注：此句采用现在分词做伴随状语。
以上两种变化,谨供楼主选择使用。