Answer:
infinitive phrase is the answer
A·loof
əˈlo͞of/
adjective
not friendly or forthcoming; cool and distant.
"they were courteous but faintly aloof"
synonyms:distant, detached, unfriendly, antisocial,unsociable, avoidant, remote, unapproachable,formal, stiff, withdrawn, reserved, unforthcoming,uncommunicative, unsympathetic;
informalstandoffish
"part of their strategy is to remain aloof during the first stages of negotiation"
conspicuously uninvolved and uninterested, typically through distaste.
"he stayed aloof from the bickering"
The word that goes in the blank space is sentence.
A sentence outline expresses ideas as words and phrases
