22.______ in natural gas and oil, so this area is worth developing.
The population of the province to more than twice what it was in 1949. The figure is now approaching 74 million.
I asked for some more cake, but there was left.
—Is it OK to take this seat? —Sorry, .
-I didn't go to the art show, because I lost my ticket. -You______have borrowed mine I didn't go to see it anyway
Birds'singing is sometimes a warning to other birds________away.