Rewrite

1- They haven't visited Luxor before
( It's )

2- Hossam bought a computer two years ago and he has been using it ever since .
( For )

1-It's the first time he visited Luxor

Hossam has been using a computer for 2 years -2

They haven't visited Luxor before It's
1-It's the first time they have visited Luxor
2- Hossam bought a computer two years ago and he has been using it ever since For
Hossam has been using his computer for 2 years -2