[ Verb and Sentence Structure ]
He (don’t, doesn’t) know the answer.
A. don’t
B. doesn’t

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ClauseNoun Phrases and Verb PhrasesPossessive AdjectivesDefinite & Indefinite Pronoun & ConditionalsParticiple Clauses & Cleft SentencesPassive Modals, Impersonal PassiveFuture Continuous, Future Perfect and Future Perfect ContinuousTOEFL Adjective and AdverbPassive Voice & Verb TensesPast Narrative TensesOther quiz:
Grammar › ViewAnn: Can we see snow in the mountain? Joe: I don’t know. If it _________ next week, we ______ be able to see it.
A. gets; won’t
B. will get; won’t
C. is getting; will
D. got; wouldn’t
Grammar › View
She usually __________ (walk) with her dog and ____________ (watch) the boats that ____________ (arrive) at the harbour.
A. Walk – watchs – arrives
B. Walks – watch – arrives
C. Walks – watches – arrive
D. Walkes – watchs – arive
She ___ been working there long.
A. hasn’t
B. hadn’t
C. didn’t
D. doesn’t
Grammar › View
Mrs Clark ….. watering her plants in her garden.
A. is
B. am
C. are
