My mother was determined to help those in need and she would have been immensely proud of what has been achieved these last 20 years. The italicized part in the sentence expresses _______.
A
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At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
Under this____pressure some of the rocks even became liquid.
John's score on the test is the highest in the class ; he____last night.
It is imperative that students _____ their term papers on time.
At ______, photography is a chemical process, during which a light-sensitive material is altered when exposed to light.