Complete the sentences using: already, just, yet, never, ever, for, since, recently, lately, today, this week. 1. how long have you been here? i've been here three days last thursday. 2. have travelled by sea? 3. we been to australia. 4. they haven't packed their luggage . 5.have you bought a return ticket ? 6.they have arrived at the airport. 7.have you seen oleg ? 8.have you heard from jane ? 9.they have visited five foreign countries. 10.i am not sure he has caught flight 415.