请问:There ____ a pen and two pencils in the bag.填is 还是 are 急

请问:There ____ a pen and two pencils in the bag.填is 还是 are 急 判断：I have a pen.____ I have pen.____ -____ ____?-It`s a black pen there is a pen 对a 提问 可以说There is a pen here吗 There is a pen.的问句 There is a pen and a pencil 还是There are a pen and a pencil I_______buy a new pen because there there is no pen in my pencilcase. there is a pen on the floor .can you ____?A.pick up it B.pick it up C.pick up them D.pick them up there is a pen in the pencilbox对a pen 划线提问对句中的a pen 划线提问啊 This is a pen and ____ is a pencil. This is a pen,and ____is a pencil over there there _ a pen and abook A.is B.are There( ) a pen and a book on the tabie . there was something waong with my pen 同义句 ____ ____ ____ with my penMaria can sing “happy new year ” _____ chinese.A at B in C on D from （ there is a pen.对划线部分a pen提问一哈就忘记怎么说了 There is a pen in my pencil case改为I () a pen in my pencil case There is a pen on the desk.(对a pen 提问.)____________on the desk?