find the mistake and correct it


they just have finished *

i haven't play tennis for aweek *

he 's gone to london in 1999 *

we haven't meet for five years *

it's a year since he has phoned us *

he has studied english since 5 years *

he haven't emailed us since last month *

it's along time since he has written to me *

1) They Have Just Finished
2)I Haven't Played Tennis 4 aweek
3)He went to london in 1999
4)We Haven't Met for 5 years
5)it's a year since he phoned us
6)he has studied english for 5 years
7)he hasn't emailed us since last month
8)it's a long time since he wrote to me

The third has two answers not one
He's gone to london in 1999.
He's gone to london since 1999. and this is the most accurate one.

انا عايزه اعرف الاجابات الصح فين