有人轻轻拍了拍我的肩膀以引起我的注意。

Someone ___tapped gently on my shoulder to get my attention.

他一边等电话，一边不耐烦地用手指敲着桌子。

He ___tapped his fingers on the desk impatiently while waiting for the call.

老师用他的马克笔轻轻敲了敲白板，以强调重点。

The teacher ___tapped the whiteboard with his marker to emphasize the key point.