he used to be very poor为什么要用be 不是do呢,be 和do的区别

steve used to be very quiet.he wasn't very o____ He used to be short. He used to be weak. he used to be very poor为什么要用be 不是do呢,be 和do的区别 Used he to be short?回答是Yes,he used.还是Yes,he used to. he used to be short hair对吗 he is not what he used to be 为什么不能how he used to be Denm's _____really quiet,but now he is very outgoingA.used to be beB.used to being为什么选B?而不是A? Used he to be short?回答是Yes,he used.还是Yes,he used to.还是Yes,he used to be. Jack used to be very short,___?a.isn't b.didn't he c.doesn't he d.hasn't he 翻译：He is no longer what he used to be. He is what he used to be.是什么意思? he is no longer what he used to be used to be very quiet 用was often怎么改写 She used to be very fat 的肯定回答是什么? that girl used to be very shy,向shy提问 He used to be short .He used to be short.(对short提问）_____ _____he use to be _____? Tom didn't used to be quiet,he used to be o____.