[ Tenses ]
Some ducks ___ in the pool at the moment.
A. are swimming
B. are swiming
C. is swimming
Select your answer:
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Gerunds as objects of prepositionGerund, Participle, Infinitive, or AppositivePast Continues TenseFormal & Informal WordsPast Perfect Simple TenseConditional Sentences Type 0, 1 and 2Sentence Structure and ConjunctionsPresent and Past Simple TenseArticles & PrepositionOther quiz:
Grammar › View_____ you ever been to New York City?
A. Have
B. Did
C. Has
D. Do
Vocabulary › View
Crystals of the mineral were then carried in suspension by the upward-moving _______ through the long funnel.
A. magma
B. mutations
C. energy
D. kinetics