81.答案:When did humans start to use tools?解析:根据句意,本题是一般过去时的特殊疑问句,要用When提问,后面跟did,再加主语humans,主语后面再跟动词短语start to use tools.82.答案:I have never heard from him ever since he left.解析:根据句意,本题主句是现在完成时的句子,主语是I,后面跟have,再...
百度试题 结果1 题目(A)37.-When did humans(人类) first ___ on the moon?-In 1969. A. land B. train C. beat 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
”a philosophy that encourages you to engage directly with the world around you. It's about learning from real-life experiences, and discovering a more profound and engaging way to learn.
B:Thelibrary.wanttoborrowsomebooks.A:26B:Aboutinventions.Youknowhavetoprepareforthesciencelesson.A:27Andwehumansarereallygreat.B:Thafstrue.Peoplehavemadelotsofinventions.A:28B:Sorry,mnotsure.29A:dontagree.nmyopinion,carsarethemostuseful.B:30A:Becausecangoanywherequicklyandconvenientlyincars.A.Maybe...
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When humans and animals play, they are building trust. They learn how far they can push their peers before anyone becomes angry or physically hurt. That's called " testing boundaries".When playing with someone younger.older playmates. sometimes pretend to be weaker or less skilled than they re...
astronaut make them die humans first health answer lucky monkeys When did 1.first go into space? The story began not very long ago, but the first 2.were not people-they were animals.Scientists wanted to make travelling to space as safe as possible for humans. So they decided to experiment...
to a greater extent than did that of couples who married in earlier [JY](8)___ as well as later decades. Since the United States maintained its [JY](9)___ dubious distinction of having the highest divorce rate in the world, the...
Hi, I'm John, and I want to help you learn English. 这里有纯正又充满磁性的美音,这里有多样化的学习素材,这里有超过 19 万充满激情的英语学习者。关注清晨朗读会,让我们共同向梦想前进! When can AI book my summer holiday? ,清晨朗读...
In college I had been taught that a successful educator should ignore bad behavior. So I did, confident that, as the textbook had said, the bad behavior would disappear as I gave my students positive attention. It sounds reasonable, b...