---Could you tell me the_______of making such tasty cakes?---Well,I just follow the instructions in the cookbook.
—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.
People change all through the months and years, but a photograph always remams ___________.
You've finished running 8,000 meters. You ______ be very thirsty.
—What do you think of the boy?—He ______ a great kid ever since he was born, always quiet and friendly.
The sun woke me up early, ______ I had stayed out very late the night before.