.I have bought two ballpens,____writes well.A.none of which

.I have bought two ballpens,____writes well.A.none of which I have bought two pen,____writes well I have bought two ballpens,＿＿writes well. I have bought two pens ,__________ write well.A.none of whic .I have bought two ball pens ,____writes well.为什么 填neither o I have bought two pens,_____ writes well. I have two grammars ,____are of great use .A.all of which B. 英语翻译I have two sisters,and out of thethree of us,none of us 英语翻译I have two sisters,and out of the three of us,none of us I have two sons,one of which is a doctor是什么从句, I have three pens,none of them is expensive中的them应改为which, I bought two cakes and you can have e_ of them