I bought a pen yesterday.画a pen

I bought a pen yesterday.画a pen He bought a pen. I bought a pen改为被动句如何改 还有I buy a pen i has bought a pen 和 i bought a pen 的区别请问：i has bought a pen 和 i bought a pen 表达的意思有区别吗,还是意思都一样,只是写法不同,可以通用.写错了 是 应该是 he has 以及 he bought 同义句：Tom bought a pen yesterday. Jack bought a pen yesterday,too.Tome bought a pen yesterday.___ __Jack.()I believe Shanghai is ___most beautiful city in China.A.the second B.second C.a secong D.the first I bought a pen to did（还是do?） my homework. she bought me a pen yesterday→I（）（）（）（）yesterday 改错I'm useing a pen which he bought it yesterday i was bought a pen by her yesterday.怎么翻译啊? I bought a pen for you中for you做什么成分 Yes,I bought you a pen.的问句!跪求!~谢谢 将下列句子改成现在完成时态速度速度I bought a pen last week.I ___ ___ a pen for ___ ___ .四个空! A:May I help you?B：I bought this pen here,but it is 1.____ 2.____. where is the pen I bought last week? I forgot _____ a pen yesterday and bought another one today .A.to buy B.buyingI forgot _____ a pen yesterday and bought another one today .A.to buy B.buying 说一下选什么和理由 还有三句:F.I went to the park with my parents yeste还有三句:F. I went to the park with my parents yesterday.G. I'm going to play football with my friendsH. My mum bought me a book yesterday. 英语翻译31-.My mother will go to Tokyo the day after tomorrow .32-.I was so tired that I had a short sleep .33-.The singer has become more and more popular around the world .34-.Why not wear the beutiful hat 35-.I bought nothing in the shop yeste He bought me a pen yesterday 改为被动语态