At ______, photography is a chemical process, during which a light-sensitive material is altered when exposed to light.
A、itsmostbasicA
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In international matches, prestige is so important that the only thing that matters is to avoid _____.
Ilongtoalleviate__________,butIcannot.
Bread and butter____liked by Westerners.
Frank almost never received any education ,()?
_____ if I had arrived yesterday without letting you know beforehand.