—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.
--- Could you tell us _______? ---- About five minutes.
The computer needs_________. I think I need ________ to ask Mr. Zhang for help.
---- What else do you think we should pay attention _________ our environment? ---- Sorry, I’ve no idea.
It seems that the students devote much time and energy _____ a high score in the exam.
Sandy feels sure about her own ability. She is a (n) _______ person.