[ Tenses ]
He realized that he …………………. his keys (lose)
A. lost
B. had lost
C. has lost

Random Topics:
The Future Simple TenseVerbal TensesComparatives or SuperlativesSo, Such, Many, MuchRelative & ModalsGrammar - much, many, a lot of1st ConditionalPast Tense vs Future TensePrepositions & Modal VerbsLinking WordsOther quiz:
Present Perfect Tense › ViewWe buy books
A. We has bought books
B. We have buyed books
C. We have bought books
Grammar › View
James and Tom _____ any chairs
A. doesn’t have
B. have
C. don’t have