1.The children should take care for their older parents .
2.Sould I make presents for my parents ?
3.Where can we park the car ?
4.You shouldn't leave your bags without nadzor.
5.Where should I put my signature ?
6.Sould I have a insurance ?
7.May be he is sleeping . No , he can't sleep . May be he is watching TV .
8.Why they aren't coming ?May be the traffic is pressure . Oh , may be they fogot the address !