()a pen,a ruler and some pencils in guna's pencil-box.小括号应填什么?

this’s a pen and that’s a ruler.哪里错了 What _______ (be) on the desk just now?There ______ (be) a pen and a ruler. there two pencils,a pen,a rubber and a knife in it.And there is a long ruler I __ a pencil-box,a pen ,a ruler and two __ . I have a bike,___ I need a ruler ,a rubber ,a pen and some _____ paper （音标近似于right+ing) A book,a pen,a ruler and an eraser___on the desk.请问是填is还是are?要用就进原则吗? This's a pen and that's a ruler.be 动词在什么情况下可以缩写什么时候不可以? ()a pen,a ruler and some pencils in guna's pencil-box.小括号应填什么? 找错误 1.This‘s a blue ruler.2.Spell an “orange”,please.3.The pen and the ruler is blue. is that your a book?哪里错了This is a pen and that's a ruler?Is this his pencil?哪里错了!求 英语：填入句子,补全对话.( ).I lost my pencil case.( It's yellow.( A pen,a pencil and a ruler.Look!( Yes,it is.( ).That's OK. 20.七年级英语;单项选择（）20.l __________ a ruler and a pen.A.can B.need C.do D.am 完形.There are color pencils,a pen,a k（ ） and a short ruler in my pencil case.k是首字母. 翻译：and this is a ruler Look This is a pen and it's red .The ruler is yellow.The key is white and the red jacket is BOb's 连词成句：pen, book, ruler,a, I,my,need ,and,math,a问题是唯一的吗?还是有好几种? 英语多项提升阅读四年级You can see a ruler,a pen,some books and some flowers in it.(改为同义句)答案 i have no pen --------no ruler.a so b, and c, or d, but是选择c么? 可是这个句子不是否定句呀?清帮我!