beautiful, Dolphins aren’t ugly. They are ______ ., clean, Dolphins can’t live in polluted water. They live in _____ water., dangerous, Dolphins are safe. They aren’t ______ ., polluted, A lot of the sea isn’t clean. It is _______ .

由

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?