—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 ________ a book two days ago. I ________ it for two days.
The English test is difficult ________ interesting.
—Happy birthday! —________
—When _________he have P.E.? —He ________ it on Monday.
—______ you _____ your help, Linda. —You’re welcome.