[ Past Perfect Tense ]
When I returned home,I realized that I. ………… my mobile phone at school.
A. have forgotten
B. had forgotten
C. forgot
D. am forgetting

Random Topics:
Common & Proper NounsPassive and Active SentencesVerb Tenses (Progressive, Perfect)Present Perfect Tense or Present Perfect Continuous TenseVerb AbilityModals in the PastGrammar - used toIntermediate GrammarSimple Past Tense and Past Perfect TenseModal Verbs and VocabularyOther quiz:
Grammar › ViewWhat is similar word of a beautiful?
A. Preety
B. Ugly
C. Nice
Grammar › View
September works for us. Lisa won’t ________ (graduate) by then.
A. graduating
B. have graduated
C. be graduate
D. graduate
Vocabulary › ViewHow often do the workers ____________ for a meeting?
A. Request
B. Assemble
C. Recuperate
D. Resume
E. Experience
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Music devices like 8-tracks and vinyl records are ________ today.
A. predict
B. obsolete
