Mum used to be afraid of the dark.So _________ I.A.did B.do C.was D.am

---Mary used to be short.---Yes,she _____.Now she's _____.---Mary used to be short.---Yes,she _____.Now she's _____.---Lily used to be fat.---Yes,but she's _____ now.---Did Lucy use to be shy and quiet.---No,she was _____.---Did you _____ to be afrai Mum used to be afraid of the dark.So _________ I.A.did B.do C.was D.am be used for be used to be used from区别 used to be used to be翻译 I used to be used to be to be used used to be to be used to be used be used to be used to used to be be used to used to／be used to／be used for的区别 be used for doing,be used to do,be used as,be used in,be used to doing,used to be used to与have used to