Supply the correct form of the verbs in brackets to complete each sentences .
1 Ten new houses (build) .....................in the town last year.
2 Emegency workers (evacuate) .....................the village when the river flooded the area.
3 How long .................(you/know) ....................each other?
4 ..................he (do).........................the housework at 10a.m tomorow ?
5 The statue of liberty in New York is a monument which symbolizes ...................(free).
6 Advances in ......................science will help people live longer in the future (medicine).