[ Past Tenses ]
They … (study) in the living room when Mom … (arrive).
A. studied, was arriving
B. were studying, was arriving
C. were studying, arrived
D. was studying, arrived

Random Topics:
Past simple vs Present perfectConjunctions and PrepositionVocabulary and GrammarTOEFLTensesGrammar - NounsPassive and Active VoiceArticle the or zero article (-)Present Perfect or Past SimpleGrammar / PronounsOther quiz:
Types of Simple Sentences › ViewStop, take your hands off of me!
A. declarative
B. imperative
C. interrogative
D. exclamatory
Vocabulary › View
integral means
A. innocent
B. necessary
C. inexpensive
D. inarticulate
