1) My brother has been doing his homework since 8 o'clock.
--> My brother ...........................
2) He started working for this factory a year ago.
-->He has ........................................
3)Tom began playing the piano 4 years ago.
-->Tom has ................................
4)My sister began to study English a year ago.
-->My sister ....................................
5)My father is reading a newspaper . He started 2 hours ago.
-->My father has .....................................
6)She has been working as a secretary for 4 year.
-->She ..............................................
7)I started working in this hotel six months ago.
-->......................................................
8)He started working as a teacher five years ago.
-->..............................................
(Mong moị người giải dùm mjh với ạ )