While you were four years old,I have been to high school.

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• 英语翻译1.Someone stole his camera while he is lying on the beach.2.I have been living here for almost 20 years.3.Dalian is east of,Beijing,on the coast.4 You need four of them for your radio.5 If I won it,I’d buy another restaurant.6 They are very friendly and warm to their guests.7 You need to get a smaller jumper.8 A kind of bird that has got colourful feathers .9 Let’s go to something really funny to make us laugh.10 You don’t look very well.You’d bet
• While you were four years old,I have been to high school.
• While you were four years old,I have been to high school.这句话哪里错了
• 关于兴趣爱好的英语单词或词组.
• 用32P标记的噬菌体侵染大肠杆菌，经培养、搅拌、离心、检测，上清液的放射性占15%，沉淀物的放射性占85%.上清液带有放射性的原因可能是（　　） A.离心时间过长，上清液中析出较重的大