1) I have just had breakfast.2) He has already had dinner.3) We haven't had dinner.4) She is still drinking tea in the canteen/dining room.5) I've already done lessons.6) He is still doing his lessons.7) We have had 3 lessons today.8) They have just had a meeting.9) She hasn't read this book yet.10) She is reading a story now.11) She often reads newspapers.12) What was she reading at three o'clock yesterday?13) We had breakfast half an hour ago.14) When do you usually have dinner?15) They are having dinner at the moment.16) She has just left.17) We have known each other for three months.18) Have you ever been to the UK?19) When did it happen?/when it happened?20) Yesterday it was very cold.21) I'm still doing homework.22) When did you do your homework?23) I was doing my homework when my mother came.24) My friend didn't do his homework yesterday.25) He usually doesn't do his homework.