A. that B. when C. where D. why 相关知识点: 试题来源: 解析 B。“when the first humans appeared on Earth”是对“mystery”的解释说明,“谜团是人类第一次出现在地球上是什么时候”,用“when”引导同位语从句,表示时间。反馈 收藏
aWhen when the earliest humans appeared on Earth, dinosaurs have been extinct for tens of thousands of years! People are discovered through fossil dinosaur. 当,当最早期的人在地球上出现,恐龙是绝种成千上万年! 人们通过化石恐龙被发现。[translate]...
Ever since humans lived on the earth,they have made use of various forms of communication.Generally,this expression of thoughts and feelings has been in the form of oral speech.When it is difficult to express withlanguage,communication is accomplished (完成) through sign language in which body ...
aregola automaticamente 自动规则 [translate] aWhen the first humans appeared on earth, dinosaurs have been extinct for several million years!people through the discovery of fossil dinosaur. 当第一个人在地球上出现,恐龙是绝种几百万年! 人们通过在化石恐龙的发现上。 [translate] ...
英语阅读Ever since humans lived on the earth,they have made use of various forms of communication.Generally,this expression of thoughts and feelings has been in the form of oral speech.When it is difficult to express withlanguage,communication is
Ever since humans have lived on the earth, they have made use of various forms of communication.Generally, this expression of thoughts and feelings has been in the form of oral speech.When there is a language barrier(障碍), communication is completed through sign language in which motions stand...
Ever since humans lived on the earth, they have made v 【小题1】 forms of communication. In general, the major form of expressing thoughts and feelings has been s_【小题2】__ language. But when there is a language barrier(障碍), that is, people m 【小题3】 each other ...
Ever since humans have lived on the earth, they have made use of various forms of communication.Generally, this expression of thoughts and feelings has been in the form of oral speech.When there is a language barrier(障碍), communication is completed through sign language in which motions stand...
Ever since humans have lived on the earth, they have made use of various forms of communication.Generally, this expression of thoughts and feelings has been in the form of oral speech.When there is a language barrier(障碍), communication is completed through sign language in which motions stand...
Ever since humans have lived on the earth, they have made use of various forms of communication.Generally, this expression of thoughts and feelings has been in the form of oral speech.When there is a language barrier(障碍), communication is completed through sign language in which motions stand...