[ Grammar ]
It’s your __________ report any suspicious activities to the authorities.
A. make a profit
B. encourage
C. duty to
D. recommend
Random Topics:
Modal PossibilitiesGrammar - to beAdverb Clause ConnectorSimple TenseGrammar & VocabContrastive ConjunctionPossessive NounsCorrelative conjunctionsAdverbial Clause / If / ComparativesPresent Perfect Negative and InterrogativeOther quiz:
Grammar › ViewClimate change is a worldwide problem that _____ to global warming.
A. lead
B. leads
C. led
D. leading
Prepositions › View
We have a lot of free time ___ the weekends.
A. in
B. on
C. at
Grammar › ViewA word that substitutes a noun or a noun phrase.
A. Adverb
B. Adjective
C. Interjection
D. Pronoun
E. Noun
Vocabulary and Grammar › View
It’s very hard to prevent the illegal downloading of _________.
A. files
B. property
C. litter