Вставьте слова-how long , since , for , already , yet . my sister has been at the university six months. have you knovn john and susan? haven/t you typed those letters . she/s the house and it/s only nine a. m. i haven/t watched set broke down/

1. My sister has been at the University for six months.
2. How long have you known John and Susan?
3. Haven't you typed those letters yet?
4. She has already cleaned the house and it's only nine AM.
5. I haven't watched TV since my set broke down.

1. for ; 2. How long ; 3. yet ; 4. already; 5. since