This is____ only expensive dress I've gotA．a B．an C．the D．不填.选那个.为什么.有没有固定搭配

Look This is____( she ) This is____ only expensive dress I've gotA．a B．an C．the D．不填.选那个.为什么.有没有固定搭配 this is____(与以前一样).英文翻译. i think this book is____（她的 --Whose cost is this --It is____. This is____(expensive)book in the shop Whose food is this?It is____. this is my idea this is____ i_______this is my idea 改同义句this is____ i_______ exp exp this jacket is____(my,mine) i like____(my,mine)jacket This book is his,that book is____(I) Which is____(good),this one or that one It is____(wet)at this time of a year. only this simpie waiting,only this You this only old This world only me