[ Past Tenses ]
I suddenly remembered that I ___ my keys.
A. forgot
B. had forgotten
C. was forgetting
D. had been forgetting

Random Topics:
Modals and Past ModalsGerunds and TensesTo Infinitive or Bare InfinitiveFuture PassiveGrammar and IdiomsProverbsNoun Verb AgreementAbilityGrammar - Present Perfect with already, just, yetGrammar - Capitalization and Possessive NounsOther quiz:
Pronoun › ViewMy brother buy a new motorbike, He really like …..
A. We
B. You
C. He
D. She
E. It
Vocabulary › View
(n) something that stands for or represents something else
A. majority
B. symbol
C. descendants
D. twilight