[ Tenses of Verbs - Usage ]
Choose the correct Structure of the Past Perfect tense
A. have + past participle
B. had + past participle
C. had + past simple
D. has + past participle

Random Topics:
Helping and Linking VerbsTOEFL GrammarDependent ClausesGrammar (Possessive Pronouns)Noun Clauses with THATSentence Structure and Grammar RulesPast Simple, Past Continuous, Past Perfect, Past Perfect ContinuousSo, Such, Many, MuchGerunds, Infinitives and Modals of PossibilityNarrative Tenses & ConditionalsOther quiz:
Tenses › Viewshe … my best friend
A. was
B. were
C. was
D. is
Grammar › View
The new laptop uses 50 percent ____ power than the old one.
A. less
B. least
Vocabulary and Grammar › Viewwhat is the past participle of the word “freeze”
A. froze
B. frozen
C. frizen
D. freezed
Perfect Tenses › View
Lewis: I __________ you an invitation email two days ago.
Danny: Really? I __________ my email.
A. didn’t send / checked
B. sent / didn’t checked
C. sent / didn’t check
D. didn’t send / checked
