[ Grammar ]
The surrounding was dirty and smelly as inconsiderate passers-by ______________ litter on the floor.
A. throw
B. thrown
C. throws
D. had thrown

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Pronouns, Verb, ConjunctionVerbs and Possessive AdjectiveTenses - Pasive VoiceQuantifiers and AdjectivesVocabulary and PhrasesCoordinating & Subordinating ConjunctionsSimple TensesDefinite ArticlesPast Perfect Simple & Past Perfect ContinuousAdverbs of DegreeOther quiz:
Tenses › ViewIt’s very noisy, because my dad _______________(vacuum) the carpet and my sisters _______________(play) the piano.
A. is vacuuming, is playing
B. vacuumng, is playing
C. vaccums, is playing
D. Is vacuuming, playing
Grammar › View
Although there are cultural __________ between ethnic groups, they still keep the identity of their own culture.
A. changes
B. exchanges
C. relations
FOR & SINCE › ViewWe have been living here _______ 2 months.
A. since
B. for
Subject Verb Agreement › View
I lost my scissors. Have you seen _______?
A. it
B. them