Помогите пожалуйста! Времена Present Perfect or Past Simple вставьте в пропущенное слово.1) At last…

Помогите пожалуйста! Времена Present Perfect or Past Simple вставьте в пропущенное слово.1) At last … . (to do) all my homework: now I shall go out. 2) The building of the house … . (to begin) early in April. 3) The rain … (to stop) but a cold wind is still blowing. 4) We… (already/to solve) the problem. 5) He … (to come) a moment ago. 6) I … (I never/to speak) to him. 7) He … . (just/ to finish) his work. 8) You … to make) any spelling mistakes in your dictation. 9) It … (to be) very cold yesterday. 10) I … . (not/to see) him since 1987.