Люди, помогите плиз, на актировках задали а я ничего не разумею,

1) My brother has never seen this film.
2) Our school has just won the competition.
3) They have already written the test in maths.
4) He has not preparedthe report for the conference yet.
5) I have already recieved an invitation to the wedding.
6) She has never eaten sushi in Japan
7) We have not met at this conference.
8) Have ypu ever been to India?
9) We have just missed the bus.
10) Whom have you sent an SMS?
11) They have already done their homework.
12) I have never flew any planes in my life.
13) What have you already bought for her birthday?