[ Dependent Preposition ]
The scientist based his findings ____ years of research.
A. on
B. at
C. in
D. for
Random Topics:
Sentence CompletionPhrase or ClauseActive & PassivePast Simple or Past ContinuousPresent Perfect Simple & Present Perfect ContinuousTenses of Verbs - UsageGrammar AssessmentTransitive or Intransitive VerbsSimple Past/Past ProgressiveModals, Infinitives and GerundsOther quiz:
Grammar › View(Are there / Is there) any sugar for my tea?
A. Are there
B. Is there
Grammar › View
If I get there early enough, I ……. you a seat.
A. did save
B. do save
C. am saving
D. shall save
Word Form & Verb Tense › ViewOne of the most _____ ways to keep your mind stress-free and healthy is meditation
A. effectively
B. effect
C. effective
D. effects
Tenses › View
By lunchtime, I ……….a text message to a friend
A. had send
B. had sent
C. have sent