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you when you first started playing the piano? 你幾歲時開始彈鋼琴? 2) start 用進行時態(tài)是,后面動詞用不定式 to do Eg: I were starting to write my homework when my mother came home .我媽媽回來時,我正打算寫作業(yè)。 3) 當 start 后接表示心理活動的動詞,如 understand ,realize等時,后接 to do sth. Eg :I start to understand the truth. 我開始明白真相。 are going to work as packagers on the assembly 要到流水線上 去做包裝工人。 Work as 是“當 ...,作為 ...”的意思 Eg: He worked as a doctor in a famous hospital.他在一間著名的醫(yī)院當醫(yī)生。 This mobile phone can work as a mini 個相機可以作為一個迷你相機。 3. First, some of us should get a doll from the line and dress it up. 首先,我們中的一些人要從流水線上把 玩具娃娃拿下來,然后給他們穿上衣服。 dress up 表示“給 ...穿上衣服” 如果賓語是人稱代詞,應(yīng)該用: to dress sb up, 如: dress her/ him up . 如果賓語是名詞,應(yīng)該用: to dress up someone, 如 dress Up her baby, dress up John Junior. 是 sk ______________