Is ___your pen friend?

Is ___your pen friend? Is it ___your new pen pal? It is I who ___your true friend is dave your pen friend? This litter is ( )my pen friend Tony daming is writing ( ) his new pen friend 初一英语同意句转换:She is Maria's pen friend.she is the pen friend __ where ___your pen pal____?---She lives Shanghai. 对划线部分提问 The letter is from a pen friend 对a pen friend提问 my pen is blue my friend is you My pen friend's name is Jack Brown. that is my good pen friend 改成复数