一只独木舟静静地漂浮在平静的湖面上。

A ___canoe floats peacefully on the still lake.

他们在湖上划独木舟时看到了许多野鸭。

They saw many wild ducks while paddling their ___canoe across the lake.

周末我们划独木舟穿越了平静的湖泊。

We ___canoed across the calm lake during the weekend.