1) She did not paint a portrait yesterday.2) Nobody saw him yestarday.3) They will open exhibition next week.4) Did he do morning exercises to keep fit?5) Did he send the telegram the day before yesterday?6) Why did she leave the letters on the table yesterday?7) Will you finish the translation next week?8) Whu usually cleans the flat?9) The carpenter will not repair the table tomorrow.10) Snow covers the ground in winter.11) I put money in the pocket some minutes ago.12) My neighbor goes for a walk with his dog twice a day.13) The student finished this report in some days.14) He does not visit his sister every weekend.15) Will Nick write the article next month?16) Who broke the chair yesterday?17) I recieved a letter from my friend last week.18) Helen always learns all grammar rules.