[ Vocabulary ]
The idea is _____ by a lot of research.
A. developed
B. supported
C. authorized
D. admired

Random Topics:
Articles & PrepositionPresent simple & ContinuousContrast Linking WordsVerb Tenses and UsageVerb + PrepositionGrammar and ReadingWish - beginnerAdjectives & QuantifiersModals in the Past - Speculation and DeductionPast Simple & Past ContinuousOther quiz:
Third Grade Exam › ViewWhat time is it?
A. It is five o’clock
B. It is four o’clock
C. It is six o’clock
D. It is seven o’clock
Narrative Tenses › View
He ______ for 2 hours when the accident happened.
A. had been driving
B. drove
C. was driving
