他从门口朝我咧嘴笑了。

He ___grinned at me from the doorway.

他只是咧嘴笑了笑，然后吐了吐舌头。

He simply ___grinned and poked his tongue out.

当他揭晓惊喜时，一抹恶作剧般的咧嘴笑在他脸上漾开。

A mischievous ___grin spread across his face as he revealed the surprise.