[ Narrative Tenses ]
They ______ for half an hour before the teacher arrived.
A. had been studying
B. worked
C. had worked

Random Topics:
Wish SentencesVocabulary and IdiomsCoordinate ConjunctionVerb Forms and Prepositionsgoing toAdjective or Adverb1st and 2nd ConditionalsPast Simple Negative & QuestionsConjunctionRelative PronounsOther quiz:
Grammar and vocabulary › Viewboring, without life, excitement or colour
_____ afternoon/people/colour/weather
A. sweeping
B. gruelling
C. dreary
D. dull
Narrative Tenses › View
I knew he _____ because his eyes were red.
A. cried
B. was crying
C. had cried
D. had been crying