6 Complete the sentences with the past simple or present perfect forms in italics. 1 They finished / have finished this construction project last year. 2 Our construction manager has already made / made a decision concerning the type of foundation for the new building. 3 The have never had / never had any problems with the choice of the proper type of foundation. 4 They started/have started this project last month. 5 Have you sent / did you send your e-mail to the construction manager? 6 She didn't finish / hasn't finished her report yet. 7 Managers have never been/never were to the USA. 8 She has already discussed/discussed the matter with the construction engineer.