This painting is splendid, but ______ we actually need it is a different matter.

_______do you have sports meetings in your school —-Once a year.

Why not paint the Golden Gate Bridge blue or other colors—The bridge has always been painted “International Orange” ______ that color is easier to see in the heavy fog.

I always go to sleep ___________ the light on.

The couple look very excited,because their only son has been________to Hong Kong University. [ ]