Is this （）umbrella?A.an B.a C./

Is this （）umbrella?A.an B.a C./ Is this an umbrella 把This ia an umbrella.This is a William's umbrella.This ia aWilliam's black umbrella改为特殊疑问句 This is 什么 old umbrella Whose umbrella is this? Is it______? A.TomWhose umbrella is this? Is it______?A.Tom B.Tom's C.herD.your this is me with my umbrella on a rainy day 中with my umbrella做什么成分 Is this your umbrella?的复数形式 this is my umbrella根据my提问 This is my umbrella的同义句 This is my umbrella 改成疑问句 Is this your umbrella?肯定回答是什么 is your umbrella this 连词成句 儿子的英语作业：This is () umbrella.A、a B、an C、不填 请选择? this is not mg umbrella .sorrg ,sir.Is this gour umbrella? they want to know ________.A.whose umbrella is this B.whose umbre this is选哪一个?为什么? This black umbrella is Mr Smith's.(改成反意疑问句的形式） （请勿乱答题）仿照例子做练习列：example：wbat is this?(bicycle/silver)Lt is a bicycle.lt is a silver bicycle1.what is this?(umbrella/black)2.what is that?(dress/red)3.what is this?(camera/blue)4.what is that?(hat/white)5.what is this 【1个初一英语改同义句】This umbrella is mineThis umbrella _____ _____ _____