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______________(go) to Shanghai to visit his grandparents. They will e back tomorrow morning. have been went haven’t seen hasn’t e have gone Practise: Use the correct forms of the verbs in brackets. (1)My father____to Beijing. He will be back in two days. ( 2) The Greens____to the USA twice。 (以上兩個(gè)句型常互換使用) He has lived here since 1991. 他從 1990年起就住在這里了。 常見結(jié)構(gòu)如下: for +表示一段時(shí)間的狀語 一段時(shí)間 + ago since + 表示過去的某一時(shí)間點(diǎn) 從句 來看幾個(gè)例句吧: Verbs with ‘for’, ‘since’ or ‘a(chǎn)go’ He has lived here for 16 years. 他住在這里有十六年了。 (4)My parents have gone to the supermarket to buy something to eat. They will be back in half an hour. 我的父母到超市買食品去了。 如: yesterday, last night, two weeks ago等 . 比較: ? 時(shí)態(tài)填空: 1. Are you sure you __________ (lose) the book? Yes, I ___________(look) for it everywhere, but I still can’t find it. have lost have looked _____ already _____ (copy) these words. have copied 3. Jim _____________(just, watch) a football match. He is so tired and hungry. has just watched 4. ______you ever _______(travel) on a train? Have travelled 5. ______ they _______(see) the film yet? Yes. They __________ (see) it already. When ______ they ______ (see) it? They _______(see)it just now. Have seen have seen did see saw ______ her sister ______(be) to Nanning? No, she_____________ ( never, be) there before. Has been has never bee