[ Grammar : can, could and be able to ]
When I was a child I used to ______ stand on my head.
A. could
B. can
C. be able to
Select your answer:
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Grammar ClausesComparison of Adjective and AdverbPast Simple Negative & QuestionsPresent Perfect and Past TensesGrammar and Language UsageGrammar (want to/ need to/ have to)Travel VocabularyVocabullary TestBe Going To vs. WillAuxiliary ModalOther quiz:
Past Perfect and Past Perfect Continuous Tense › ViewShe ________ (teach) chemistry before she became a journalist.
A. had teached
B. had been teached
C. had been taught
D. had been teaching
Grammar › View
—- angles of any triangle always add up to 180 degrees.
A. If three
B. The three
C. Three of
D. Three are