1 As far(改为long) as you work hard ,you will succeed some day
2 Did you really turn your back form（改为to） his suggestion?
3 A few (加上of)my friends have gone on a trip round the world
4 It is so kind of you to see me off away(去掉away) at the railway station
5 The house,belonged(改为belonging) to my grandfather now ,is being repaired