Решите пожалуйста этот тест по английскому языку

1. did done brought brought gave given had had said said saw seen was/were been built built wrote written read read 2. l have already visited her mother we haven't written a letter he hasn' finished his work people have built that new school in this year have they learnet this poem yet? 3. two hundred and forty three one hundred and fifty six eight hundred and ninety seven one thousand and six one thousand nine hundred and eighty seven two thousand and fourteen fifty six twenty four six hudred and seventy five eight hudred and twenty five 4. I would like to change this world for best. The first telephone system opened in Moscow in 1882 We have been knowing each other from 1980. People should help each other in difficult situations.