The migratory bird is a host of the wetland.候鸟是湿地的主人.As a kind of migratory bird.啊,丹顶鹤不是一种候鸟吗.On 20 th, a migratory bird flies from the north woods, revolves the spacious square to circle.20日, 一只候鸟从北边的树林里飞来, 围绕着空旷的广场盘旋....
Relative pronouns and adverbs introduce attributive clauses.关系代词和关系副词引导定语从句.Complete the following sentences by filling the blanks with proper prepositions and adverbs.用适当的冠词和副词填空, 完成下列句子。Some English adverbs function as...