[ Vocabulary and Grammar ]
The helicopter ______ in the air.
A. Flies
B. Stands

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Adverb PhrasesTOEFLUnscramble SentenceModals and Modal PerfectsPassive Voice and Relative ClausesPast Simple, Past Continuous, Past Perfect, Past Perfect ContinuousNoun, Quantifiers and SuffixesSimple Present vs Present ProgresiveSimple vs Present Continuous TensesPassive Voice in Past Simple TenseOther quiz:
Kinds of Nouns › Viewteacher
A. Common
B. Proper
C. Mass
D. Count
E. Collective
Gerund › View
I don’t mind … by train but I prefer …
A. to travel, to fly
B. to travel, flying
C. travelling, flying
D. travelling, to fly