Falling house prices are illustrative of the crisis facing the _____ industry.
constructed
constructive
construct
construction
The police officer ______ himself (= gave his name or proved who he was) and asked for our help.
indentity
identical
indentification
identified
Admitting you've made a mistake is a sign of _____, not weakness.
strongly
strength
strengthen
strong
Identical twins _____ from a single fertilized egg which then splits into two.
developable
developing
development
develop
I prefer the second option - its advantages are _____ and cheapness.
simplicity
simplify
simplified
simply
______, ingenuity, and flair are the songwriter's real talents.
Created
Creation
Creative
Creativity
