1:They(paint)......the school gate when we came
2:They(build).....a new school in this area next year
3:My brother(work)....in this factory for many years
4:My family(go)....Da Lat next summer
5:The water(boil)......at 100 degrees celsius
6:I(not see).....her since last week
7:My sister(play).....the piano since she (be).....a child