1. The red car is cheaper than the blue one
--->the blue car is not as cheap as the red car
2.Maria sings worse than peter --->peter sings better than maria
3.They did not know his name until they met him ---> it was not until they met him did they knew his name
4.The children cannot use the internet because they live in remote areas --->if the children didn't live in __ they could use the internet
5.we stayed at home because the weather was terrible ---if the weather hadn't terrible. we wouldn't have stayed at home