Scientists ___ many important discoveries since 2000., made, have made, have been made, The first computer ___ by Charles Babbage in the 19th century., designed, has designed, was designed, My father ___ his car twice so far this week., washed, has washed, has been washed, The classroom ___ already., cleaned, has cleaned, has been cleaned, Alexander Fleming ___ penicillin in 1928., has discovered, discovered, was discovered, Many new buildings ___ in our city since 2020., have built, have been built, built, People ___ English in many countries around the world., speak, are spoken, have spoken, The invitations ___ to all the guests so far., have sent, have been sent, sent, My son ___ three books so far this month., has read, has been read, read, The old bridge ___ in 1995., has built, built, was built, They ___ the school website three times so far this month., updated, have updated, have been updated, This hospital ___ by thousands of patients since it opened., has visited, visited, has been visited, The manager ___ this computer program every day., uses, is used, has used, The digital camera ___ by Steven Sasson in 1975., invented, was invented, has invented, We ___ our homework already., have finished, have been finished, finished, Several new words ___ to the dictionary so far this year., added, have added, have been added, My mother ___ dinner every evening., prepares, is prepared, has been prepared, The windows ___ yesterday morning., have cleaned, were cleaned, cleaned, Scientists ___ a new medicine so far., developed, have developed, have been developed, The school library ___ three times since it opened., has renovated, renovated, has been renovated

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