Topics: Present Simple and Continuous Tense
They __________ (work/working) on their project at the moment.
A. work
B. working
C. works
D. are working
Select your answer:

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Family VocabularyPast or Present Verb TenseAdverbs (manners & modifiers)Past TensesGerund and InfinitiveMesopotamia VocabularyPresent Perfect Simple & ContinuousModal ProbabilityComplex Sentences with Adverb ClausesIrregular AdjectivesOther quiz:
Grammar › View~~ roar ~~ . .
A. Naming Word
B. Action Word
C. Describing Word
Grammar › View
I know …….. blue whale is the biggest animal in the world.
A. a
B. the
C. x
