[ Past Tenses ]
Olivia and Victor … (chat) via Skype for an hour when the connection broke.
A. had chatted
B. chatted
C. was chatting
D. had been chatting

Random Topics:
Pronouns and AntecedentsGrammar: Have toRoot WordComplex SentencesSimple Past TenseGrammar (was, were, could, could not)Subordination ConjunctionsObject PronounsVerbs & Verb TensesCompound Nouns and Compound Adjectives QuestionsOther quiz:
Grammar › ViewMy Chinese class is __________ (boring) my English class.
A. more boring than
B. boringer than
Vocabulary › View
Which word is defined as “A group of people living in the same place or having a particular characteristic in common”?
A. Social
B. Community
C. Digital native
D. Interactive
Gerund or Infinitive › ViewHas it stopped _______ yet?
A. rain
B. to rain
C. raining
Tenses (Present, Past, Future Forms) › View
Last summer I visited the United States. I ………………….. (look forward) to the trip for ages
A. was looking forward
B. have been looking forward
C. had been looking forward
D. had looked forward
