[ Vocabulary ]
An event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment.
A. field study
B. trials
C. evidence
D. variable
Random Topics:
Modal Verbs for PossibilityAdverb Of PlaceActive and PassiveModals and AdviceDirect Object and Indirect ObjectModals for ObligationGrammar SuffixesIntermediate PrepositionsIdentifying Sentence TypesPassive Voice - Present ContinuousOther quiz:
Passive Voice of Tenses › ViewActive: They are taking pictures from the bus.
A. Passive: Pictures are taken from the bus.
B. Passive: Pictures are being taken from the bus.
C. Passive: Pictures are being took from the bus.
Grammar › View
The number of the months in a year …………twelve.
A. were
B. was
C. are
D. is
Past Continuous Tense › ViewSomeone tried to steal her phone while she … for a railway ticket.
- queued
- was queuing
Tenses › View
When Bob went to bed last night, he __________ (brush) his teeth.
A. brushes
B. brush
C. had brushed
D. had brush