[ Grammar ]
What does a pilot do?
He _____________________.
A. flies airplanes
B. fly airplanes
C. cleans airplanes
D. helps airplanes

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Sentence Structure and Verb TensesSubject Verb Agreement and Coordinating ConjunctionsNoun and Modal VerbsPast Continues TenseHomophone & HomonymModals and PrepositionNarrative Tenses & ConditionalsVerb Present Simple TensePrepositions and Prepositional PhrasesModal Verbs and ConjuctionsOther quiz:
Grammar › ViewWe ____________ (never visit) the museum before.
A. visits
B. visiting have
C. have never visited
D. visited have never
Grammar › View
They ________ be very happy. They never stop smiling.
A. can
B. must
C. can’t