[الاستاذ عبدالهادى حمودة]

4-
1-he has been apolice officer since he was twenty one
or
he has been apolice officer since his twenty-first birthday
2-you'd better do your homework.............
3-without having aproper study plan..............
or
without aproper study plan..............
4-as soon as i (had) heard the news on the radio ,i ........
5-he accused hoda of breaking the cup