Xi’an was attacked by such a terrible smog _____ few residents had ever experienced before.
Roses need special care ______ they can live through winter.
Sam _____ some knowledge of the computer just by watching others working on it.
—What do you think of store shopping in the future? —_______, I think it will exist along with home shopping but will never be replaced.
Wild animals have been overhunted, and as ____ result, some of them are among the animals in ______danger.
I go to see a film _____.