[ Grammar ]
Volunteer become well _________ of the problems facing the world.
A. aware
B. concerned
C. helpful
D. interested

Random Topics:
Conjunctions and Verb TensesJobsPreposition of PlaceDaily Routines & TensesActive and Passive Gerunds and InfinitivesFragment, Comma Splice and Run -on SentencePassive Modals in Different TensesThird ConditionalsConjunctivesConditional Sentences Type 1Other quiz:
Tenses › ViewThey _______ (to build) a new house next door.
A. build
B. builds
C. are building
D. built
Vocabulary › View
full of light and color
A. brilliant
B. pattern
C. archive
