Make up interrogative and negative sentences irom the following ones. Example: A new library has been buit in our steet Has a new library been buit in your street? A new library has not been buit inorstet 1 Many schools have been constructed this year. 2 The new project has been finished already. 3 Our library has been turned into a shopping cente 4 the problem has been discussed aiready
5 The letters have been posted
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