[ Grammar ]
We _____ for about 20 minutes when the plane was hit by turbulence.
A. flew
B. were flying
C. had flown
D. had been flying

Random Topics:
Present Simple QuestionsPronouns of QuantityAuxiliary Verbs (be, do, have)Verb-ing or to VerbDeterminersCoordinating ConjunctionsPast Narrative TensesModals and Past ModalsGrammar and IdiomsPresent Perfect TenseOther quiz:
Modal Verbs › ViewIt’s sunny outside. You … go out and enjoy the weather
A. should
B. must
C. have to
D. has to
Grammar TOEFL › View
The report _____ this process is in the library
A. it explains
B. explains
C. who explains
D. that explains
Definitions, Synonyms › ViewBeseech
A. Emplor
B. Elicit
C. Appeal
D. Amplify
Adverbs › View
Identify the adverb in the sentence: ‘She spoke softly to the child.’
A. spoke
B. child
C. softly
D. to
