[ Complex Sentences with Adverb Clauses ]
Her mother used to take her to the zoo ________ she was a little girl.
A. until
B. while
C. when
D. before

Random Topics:
Gerund & InfinitivePresent and Past Simple TenseClause Markers TOEFL GrammarLinking Words and ConjunctionGrammar, Conditional Sentences, VocabularyModals - Reported Speech - ConditionalsVocabulary & GrammarFirst ConditionalsConditional Sentence Type 0-3Past and Perfect TensesOther quiz:
Word Form & Verb Tense › ViewWhile my father_____ a film on TV, my mother was cooking dinner
A. watched
B. was watching
C. had watched
D. watches
Tenses › View
We ___________ at POC for 3 months
A. study
B. are studying
C. have studied
D. studied