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一，按要求改写句子。
1, They have already had lunch.(改为一般疑问句)
（就划线部分提问）
3, Lily and Lisa have heard the news.(改为否定句)
4, We have painted the room for 8 hours.（就划线部分提问）
5, never, been, Turkey, the, engineers, have, to, before.（连词成句）
二，完成下列句子。
1,--Have you typed the letter for the bo?
--Yes, I_____the letter an hour ago.2,--I want to see the Great Wall because I_____never_____it before.3, Mary_____(lose)her way, so she must ask for help.4,--Have you found the lost pen?
--Yes.I_____it when I cleaned the room.5, _____he make an appointment the day before yesterday? 6, The seaman_____away from his home for 3 months.7, Mi Chang is not here.He has _____to the airport to the
airport to meet his friends.8, Tim has_____in Australia for six months.9, I know why you _____(tell)Lucy the news last night.10, Could you tell me what they _____(say)to you two days ago?
