The fifth-generation networks are still in testing and _________ phases.
A. processed
B. trial
C. outcome
D. exposed
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The world community had been slow to _________ to the crisis.
A. respond
B. response
C. reflect
D. represent
_________ life was discovered at depth in the sea previously thought to have nothing.
A. margin
B. mutual
C. marine
D. manual
This textile is a silky _________ made from waste materials.
A. quality
B. fabricate
C. fiber
D. facility
Do you have a ________ of some kind of DNA that you want to clone.
A. fragile
B. fragrant
C. feather
D. fragment